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            "id": "saudiarabia",
            "parent": "westernasia",
            "name": "Saudi Arabia",
            "value": 32938213
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            "id": "yemen",
            "parent": "westernasia",
            "name": "Yemen",
            "value": 28250420
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            "id": "syria",
            "parent": "westernasia",
            "name": "Syria",
            "value": 18269868
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            "id": "azerbaijan",
            "parent": "westernasia",
            "name": "Azerbaijan",
            "value": 9827589
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            "id": "jordan",
            "parent": "westernasia",
            "name": "Jordan",
            "value": 9702353
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          {
            "id": "unitedarabemirates",
            "parent": "westernasia",
            "name": "United Arab Emirates",
            "value": 9400145
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          {
            "id": "israel",
            "parent": "westernasia",
            "name": "Israel",
            "value": 8321570
          },
          {
            "id": "lebanon",
            "parent": "westernasia",
            "name": "Lebanon",
            "value": 6082357
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          {
            "id": "palestine",
            "parent": "westernasia",
            "name": "Palestine",
            "value": 4920724
          },
          {
            "id": "oman",
            "parent": "westernasia",
            "name": "Oman",
            "value": 4636262
          },
          {
            "id": "kuwait",
            "parent": "westernasia",
            "name": "Kuwait",
            "value": 4136528
          },
          {
            "id": "georgia",
            "parent": "westernasia",
            "name": "Georgia",
            "value": 3912061
          },
          {
            "id": "armenia",
            "parent": "westernasia",
            "name": "Armenia",
            "value": 2930450
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          {
            "id": "qatar",
            "parent": "westernasia",
            "name": "Qatar",
            "value": 2639211
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          {
            "id": "bahrain",
            "parent": "westernasia",
            "name": "Bahrain",
            "value": 1492584
          },
          {
            "id": "centralasia",
            "parent": "asia",
            "name": "Central Asia"
          },
          {
            "id": "uzbekistan",
            "parent": "centralasia",
            "name": "Uzbekistan",
            "value": 31910641
          },
          {
            "id": "kazakhstan",
            "parent": "centralasia",
            "name": "Kazakhstan",
            "value": 18204499
          },
          {
            "id": "tajikistan",
            "parent": "centralasia",
            "name": "Tajikistan",
            "value": 8921343
          },
          {
            "id": "kyrgyzstan",
            "parent": "centralasia",
            "name": "Kyrgyzstan",
            "value": 6045117
          },
          {
            "id": "turkmenistan",
            "parent": "centralasia",
            "name": "Turkmenistan",
            "value": 5758075
          },
          {
            "id": "easterneurope",
            "parent": "europe",
            "name": "Eastern Europe"
          },
          {
            "id": "russia",
            "parent": "easterneurope",
            "name": "Russia",
            "value": 143989754
          },
          {
            "id": "ukraine",
            "parent": "easterneurope",
            "name": "Ukraine",
            "value": 44222947
          },
          {
            "id": "poland",
            "parent": "easterneurope",
            "name": "Poland",
            "value": 38170712
          },
          {
            "id": "romania",
            "parent": "easterneurope",
            "name": "Romania",
            "value": 19679306
          },
          {
            "id": "czechia",
            "parent": "easterneurope",
            "name": "Czechia",
            "value": 10618303
          },
          {
            "id": "hungary",
            "parent": "easterneurope",
            "name": "Hungary",
            "value": 9721559
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          {
            "id": "belarus",
            "parent": "easterneurope",
            "name": "Belarus",
            "value": 9468338
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          {
            "id": "bulgaria",
            "parent": "easterneurope",
            "name": "Bulgaria",
            "value": 7084571
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          {
            "id": "slovakia",
            "parent": "easterneurope",
            "name": "Slovakia",
            "value": 5447662
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          {
            "id": "moldova",
            "parent": "easterneurope",
            "name": "Moldova",
            "value": 4051212
          },
          {
            "id": "northerneurope",
            "parent": "europe",
            "name": "Northern Europe"
          },
          {
            "id": "unitedkingdom",
            "parent": "northerneurope",
            "name": "United Kingdom",
            "value": 66181585
          },
          {
            "id": "sweden",
            "parent": "northerneurope",
            "name": "Sweden",
            "value": 9910701
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          {
            "id": "denmark",
            "parent": "northerneurope",
            "name": "Denmark",
            "value": 5733551
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          {
            "id": "finland",
            "parent": "northerneurope",
            "name": "Finland",
            "value": 5523231
          },
          {
            "id": "norway",
            "parent": "northerneurope",
            "name": "Norway",
            "value": 5305383
          },
          {
            "id": "ireland",
            "parent": "northerneurope",
            "name": "Ireland",
            "value": 4761657
          },
          {
            "id": "lithuania",
            "parent": "northerneurope",
            "name": "Lithuania",
            "value": 2890297
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          {
            "id": "latvia",
            "parent": "northerneurope",
            "name": "Latvia",
            "value": 1949670
          },
          {
            "id": "estonia",
            "parent": "northerneurope",
            "name": "Estonia",
            "value": 1309632
          },
          {
            "id": "iceland",
            "parent": "northerneurope",
            "name": "Iceland",
            "value": 335025
          },
          {
            "id": "guernseyandjersey",
            "parent": "northerneurope",
            "name": "Guernsey and Jersey",
            "value": 165314
          },
          {
            "id": "isleofman",
            "parent": "northerneurope",
            "name": "Isle of Man",
            "value": 84287
          },
          {
            "id": "faroeislands",
            "parent": "northerneurope",
            "name": "Faroe Islands",
            "value": 49290
          },
          {
            "id": "southerneurope",
            "parent": "europe",
            "name": "Southern Europe"
          },
          {
            "id": "italy",
            "parent": "southerneurope",
            "name": "Italy",
            "value": 59359900
          },
          {
            "id": "spain",
            "parent": "southerneurope",
            "name": "Spain",
            "value": 46354321
          },
          {
            "id": "greece",
            "parent": "southerneurope",
            "name": "Greece",
            "value": 11159773
          },
          {
            "id": "cyprus",
            "parent": "southerneurope",
            "name": "Cyprus",
            "value": 1179551
          },
          {
            "id": "portugal",
            "parent": "southerneurope",
            "name": "Portugal",
            "value": 10329506
          },
          {
            "id": "serbia",
            "parent": "southerneurope",
            "name": "Serbia",
            "value": 8790574
          },
          {
            "id": "croatia",
            "parent": "southerneurope",
            "name": "Croatia",
            "value": 4189353
          },
          {
            "id": "bosniaandherzegovina",
            "parent": "southerneurope",
            "name": "Bosnia and Herzegovina",
            "value": 3507017
          },
          {
            "id": "albania",
            "parent": "southerneurope",
            "name": "Albania",
            "value": 2930187
          },
          {
            "id": "republicofmacedonia",
            "parent": "southerneurope",
            "name": "Republic of Macedonia",
            "value": 2083160
          },
          {
            "id": "slovenia",
            "parent": "southerneurope",
            "name": "Slovenia",
            "value": 2079976
          },
          {
            "id": "montenegro",
            "parent": "southerneurope",
            "name": "Montenegro",
            "value": 628960
          },
          {
            "id": "malta",
            "parent": "southerneurope",
            "name": "Malta",
            "value": 430835
          },
          {
            "id": "andorra",
            "parent": "southerneurope",
            "name": "Andorra",
            "value": 76965
          },
          {
            "id": "gibraltar",
            "parent": "southerneurope",
            "name": "Gibraltar",
            "value": 34571
          },
          {
            "id": "sanmarino",
            "parent": "southerneurope",
            "name": "San Marino",
            "value": 33400
          },
          {
            "id": "vaticancity",
            "parent": "southerneurope",
            "name": "Vatican City",
            "value": 792
          },
          {
            "id": "westerneurope",
            "parent": "europe",
            "name": "Western Europe"
          },
          {
            "id": "germany",
            "parent": "westerneurope",
            "name": "Germany",
            "value": 82114224
          },
          {
            "id": "france",
            "parent": "westerneurope",
            "name": "France",
            "value": 64979548
          },
          {
            "id": "netherlands",
            "parent": "westerneurope",
            "name": "Netherlands",
            "value": 17035938
          },
          {
            "id": "belgium",
            "parent": "westerneurope",
            "name": "Belgium",
            "value": 11429336
          },
          {
            "id": "austria",
            "parent": "westerneurope",
            "name": "Austria",
            "value": 8735453
          },
          {
            "id": "switzerland",
            "parent": "westerneurope",
            "name": "Switzerland",
            "value": 8476005
          },
          {
            "id": "luxembourg",
            "parent": "westerneurope",
            "name": "Luxembourg",
            "value": 583455
          },
          {
            "id": "monaco",
            "parent": "westerneurope",
            "name": "Monaco",
            "value": 38695
          },
          {
            "id": "liechtenstein",
            "parent": "westerneurope",
            "name": "Liechtenstein",
            "value": 37922
          },
          {
            "id": "australiaandnewzealand",
            "parent": "oceania",
            "name": "Australia and New Zealand"
          },
          {
            "id": "australia",
            "parent": "australiaandnewzealand",
            "name": "Australia",
            "value": 24450561
          },
          {
            "id": "newzealand",
            "parent": "australiaandnewzealand",
            "name": "New Zealand",
            "value": 4705818
          },
          {
            "id": "melanesia",
            "parent": "oceania",
            "name": "Melanesia"
          },
          {
            "id": "papuanewguinea",
            "parent": "melanesia",
            "name": "Papua New Guinea",
            "value": 6703273
          },
          {
            "id": "fiji",
            "parent": "melanesia",
            "name": "Fiji",
            "value": 905502
          },
          {
            "id": "solomonislands",
            "parent": "melanesia",
            "name": "Solomon Islands",
            "value": 611343
          },
          {
            "id": "newcaledonia",
            "parent": "melanesia",
            "name": "New Caledonia",
            "value": 276255
          },
          {
            "id": "vanuatu",
            "parent": "melanesia",
            "name": "Vanuatu",
            "value": 276244
          },
          {
            "id": "micronesia",
            "parent": "oceania",
            "name": "Micronesia"
          },
          {
            "id": "guam",
            "parent": "micronesia",
            "name": "Guam",
            "value": 164229
          },
          {
            "id": "kiribati",
            "parent": "micronesia",
            "name": "Kiribati",
            "value": 116398
          },
          {
            "id": "federatedstatesofmicronesia",
            "parent": "micronesia",
            "name": "Federated States of Micronesia",
            "value": 105544
          },
          {
            "id": "northernmarianaislands",
            "parent": "micronesia",
            "name": "Northern Mariana Islands",
            "value": 55144
          },
          {
            "id": "marshallislands",
            "parent": "micronesia",
            "name": "Marshall Islands",
            "value": 53127
          },
          {
            "id": "palau",
            "parent": "micronesia",
            "name": "Palau",
            "value": 21729
          },
          {
            "id": "nauru",
            "parent": "micronesia",
            "name": "Nauru",
            "value": 11359
          },
          {
            "id": "polynesia",
            "parent": "oceania",
            "name": "Polynesia"
          },
          {
            "id": "frenchpolynesia",
            "parent": "polynesia",
            "name": "French Polynesia",
            "value": 283007
          },
          {
            "id": "samoa",
            "parent": "polynesia",
            "name": "Samoa",
            "value": 196440
          },
          {
            "id": "tonga",
            "parent": "polynesia",
            "name": "Tonga",
            "value": 108020
          },
          {
            "id": "americansamoa",
            "parent": "polynesia",
            "name": "American Samoa",
            "value": 55641
          },
          {
            "id": "cookislands",
            "parent": "polynesia",
            "name": "Cook Islands",
            "value": 17380
          },
          {
            "id": "wallisandfutuna",
            "parent": "polynesia",
            "name": "Wallis and Futuna",
            "value": 11773
          },
          {
            "id": "tuvalu",
            "parent": "polynesia",
            "name": "Tuvalu",
            "value": 11192
          },
          {
            "id": "niue",
            "parent": "polynesia",
            "name": "Niue",
            "value": 1618
          },
          {
            "id": "tokelau",
            "parent": "polynesia",
            "name": "Tokelau",
            "value": 1300
          }
        ];
    
        /* leave only final nodes */
        for (var i = wdata.length - 1; i >= 0; i--) {
          wdata[i].group = wdata[i].parent;
          if (['easternafrica', 'westernafrica', 'northafrica', 'centralafrica', 'southafrica'].indexOf(wdata[i].group) !== -1) {
            wdata[i].group = 'africa';
          }
          if (['easternasia', 'westernasia', 'northasia', 'centralasia', 'southernasia', 'southeasternasia'].indexOf(wdata[i].group) !== -1) {
            wdata[i].group = 'asia';
          }
          if (['easterneurope', 'westerneurope', 'northerneurope', 'centraleurope', 'southerneurope'].indexOf(wdata[i].group) !== -1) {
            wdata[i].group = 'europe';
          }
          if (['carribean'].indexOf(wdata[i].group) !== -1) {
            wdata[i].group = 'centralamerica';
          }
          if (['australiaandnewzealand', 'melanesia', 'micronesia', 'polynesia'].indexOf(wdata[i].group) !== -1) {
            wdata[i].group = 'oceania';
          }
          if (wdata[i].id !== 'theworld') {
            wdata[i].parent = 'theworld';
          }
          if (!wdata[i].value && wdata[i].id !== 'theworld') {
            wdata.splice(i, 1);
          }
        }
    
        function render() {
    
          var cdata = {
            "type": "bubble-pack",
            "plotarea": {
              "margin": 10
            },
            "options": {
              "padding": 0,
              "min-size": 3,
              "group-filter": ["asia", "southamerica", "africa", "europe"],
              "format": {
                "short": true,
                "decimals": 2,
                "decimals-separator": ".",
                "thousands-separator": ","
              },
              "series": wdata
            }
          };
    
          zingchart.render({
            id: 'zc',
            width: 550,
            height: 550,
            output: 'svg',
            data: cdata
          });
    
        };
    
        render();
      </script>
    </body>
    
    </html>
    <!DOCTYPE html>
    <html>
    
    <head>
      <meta charset="utf-8">
      <title>ZingSoft Demo</title>
    
      <script src="https://cdn.zingchart.com/zingchart.min.js"></script>
    </head>
    
    <body>
      <div id="zc"></div>
    </body>
    
    </html>
    html,
    body {
      height: 100%;
      width: 100%;
      margin: 0;
      padding: 0;
    }
    
    #myChart {
      height: 100%;
      width: 100%;
      min-height: 150px;
    }
    
    .zc-ref {
      display: none;
    }
    var wdata = [{
        "id": "theworld",
        "parent": "",
        "name": "The World"
      },
      {
        "id": "asia",
        "parent": "theworld",
        "name": "Asia"
      },
      {
        "id": "africa",
        "parent": "theworld",
        "name": "Africa"
      },
      {
        "id": "america",
        "parent": "theworld",
        "name": "America"
      },
      {
        "id": "europe",
        "parent": "theworld",
        "name": "Europe"
      },
      {
        "id": "oceania",
        "parent": "theworld",
        "name": "Oceania"
      },
      {
        "id": "easternafrica",
        "parent": "africa",
        "name": "Eastern Africa"
      },
      {
        "id": "ethiopia",
        "parent": "easternafrica",
        "name": "Ethiopia",
        "value": 104957438
      },
      {
        "id": "tanzania",
        "parent": "easternafrica",
        "name": "Tanzania",
        "value": 57310019
      },
      {
        "id": "kenya",
        "parent": "easternafrica",
        "name": "Kenya",
        "value": 49699862
      },
      {
        "id": "uganda",
        "parent": "easternafrica",
        "name": "Uganda",
        "value": 42862958
      },
      {
        "id": "mozambique",
        "parent": "easternafrica",
        "name": "Mozambique",
        "value": 29668834
      },
      {
        "id": "madagascar",
        "parent": "easternafrica",
        "name": "Madagascar",
        "value": 25570895
      },
      {
        "id": "malawi",
        "parent": "easternafrica",
        "name": "Malawi",
        "value": 18622104
      },
      {
        "id": "zambia",
        "parent": "easternafrica",
        "name": "Zambia",
        "value": 17094130
      },
      {
        "id": "zimbabwe",
        "parent": "easternafrica",
        "name": "Zimbabwe",
        "value": 16529904
      },
      {
        "id": "somalia",
        "parent": "easternafrica",
        "name": "Somalia",
        "value": 14742523
      },
      {
        "id": "southsudan",
        "parent": "easternafrica",
        "name": "South Sudan",
        "value": 12575714
      },
      {
        "id": "rwanda",
        "parent": "easternafrica",
        "name": "Rwanda",
        "value": 12208407
      },
      {
        "id": "burundi",
        "parent": "easternafrica",
        "name": "Burundi",
        "value": 10864245
      },
      {
        "id": "eritrea",
        "parent": "easternafrica",
        "name": "Eritrea",
        "value": 5068831
      },
      {
        "id": "mauritius",
        "parent": "easternafrica",
        "name": "Mauritius",
        "value": 1265138
      },
      {
        "id": "djibouti",
        "parent": "easternafrica",
        "name": "Djibouti",
        "value": 956985
      },
      {
        "id": "runion",
        "parent": "easternafrica",
        "name": "Réunion",
        "value": 876562
      },
      {
        "id": "comoros",
        "parent": "easternafrica",
        "name": "Comoros",
        "value": 813912
      },
      {
        "id": "mayotte",
        "parent": "easternafrica",
        "name": "Mayotte",
        "value": 253045
      },
      {
        "id": "seychelles",
        "parent": "easternafrica",
        "name": "Seychelles",
        "value": 94737
      },
      {
        "id": "westernafrica",
        "parent": "africa",
        "name": "Western Africa"
      },
      {
        "id": "nigeria",
        "parent": "westernafrica",
        "name": "Nigeria",
        "value": 190886311
      },
      {
        "id": "ghana",
        "parent": "westernafrica",
        "name": "Ghana",
        "value": 28833629
      },
      {
        "id": "cteivoire",
        "parent": "westernafrica",
        "name": "Côte Ivoire",
        "value": 24294750
      },
      {
        "id": "niger",
        "parent": "westernafrica",
        "name": "Niger",
        "value": 21477348
      },
      {
        "id": "burkinafaso",
        "parent": "westernafrica",
        "name": "Burkina Faso",
        "value": 19193382
      },
      {
        "id": "mali",
        "parent": "westernafrica",
        "name": "Mali",
        "value": 18541980
      },
      {
        "id": "senegal",
        "parent": "westernafrica",
        "name": "Senegal",
        "value": 15850567
      },
      {
        "id": "guinea",
        "parent": "westernafrica",
        "name": "Guinea",
        "value": 12717176
      },
      {
        "id": "benin",
        "parent": "westernafrica",
        "name": "Benin",
        "value": 11175692
      },
      {
        "id": "togo",
        "parent": "westernafrica",
        "name": "Togo",
        "value": 7797694
      },
      {
        "id": "sierraleone",
        "parent": "westernafrica",
        "name": "Sierra Leone",
        "value": 7557212
      },
      {
        "id": "liberia",
        "parent": "westernafrica",
        "name": "Liberia",
        "value": 4731906
      },
      {
        "id": "mauritania",
        "parent": "westernafrica",
        "name": "Mauritania",
        "value": 4420184
      },
      {
        "id": "thegambia",
        "parent": "westernafrica",
        "name": "The Gambia",
        "value": 2100568
      },
      {
        "id": "guineabissau",
        "parent": "westernafrica",
        "name": "Guinea-Bissau",
        "value": 1861283
      },
      {
        "id": "caboverde",
        "parent": "westernafrica",
        "name": "Cabo Verde",
        "value": 546388
      },
      {
        "id": "sainthelenaascensionandtristandacunha",
        "parent": "westernafrica",
        "name": "Saint Helena, Ascension and Tristan da Cunha",
        "value": 4049
      },
      {
        "id": "northafrica",
        "parent": "africa",
        "name": "North Africa"
      },
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        "name": "Portugal",
        "value": 10329506
      },
      {
        "id": "serbia",
        "parent": "southerneurope",
        "name": "Serbia",
        "value": 8790574
      },
      {
        "id": "croatia",
        "parent": "southerneurope",
        "name": "Croatia",
        "value": 4189353
      },
      {
        "id": "bosniaandherzegovina",
        "parent": "southerneurope",
        "name": "Bosnia and Herzegovina",
        "value": 3507017
      },
      {
        "id": "albania",
        "parent": "southerneurope",
        "name": "Albania",
        "value": 2930187
      },
      {
        "id": "republicofmacedonia",
        "parent": "southerneurope",
        "name": "Republic of Macedonia",
        "value": 2083160
      },
      {
        "id": "slovenia",
        "parent": "southerneurope",
        "name": "Slovenia",
        "value": 2079976
      },
      {
        "id": "montenegro",
        "parent": "southerneurope",
        "name": "Montenegro",
        "value": 628960
      },
      {
        "id": "malta",
        "parent": "southerneurope",
        "name": "Malta",
        "value": 430835
      },
      {
        "id": "andorra",
        "parent": "southerneurope",
        "name": "Andorra",
        "value": 76965
      },
      {
        "id": "gibraltar",
        "parent": "southerneurope",
        "name": "Gibraltar",
        "value": 34571
      },
      {
        "id": "sanmarino",
        "parent": "southerneurope",
        "name": "San Marino",
        "value": 33400
      },
      {
        "id": "vaticancity",
        "parent": "southerneurope",
        "name": "Vatican City",
        "value": 792
      },
      {
        "id": "westerneurope",
        "parent": "europe",
        "name": "Western Europe"
      },
      {
        "id": "germany",
        "parent": "westerneurope",
        "name": "Germany",
        "value": 82114224
      },
      {
        "id": "france",
        "parent": "westerneurope",
        "name": "France",
        "value": 64979548
      },
      {
        "id": "netherlands",
        "parent": "westerneurope",
        "name": "Netherlands",
        "value": 17035938
      },
      {
        "id": "belgium",
        "parent": "westerneurope",
        "name": "Belgium",
        "value": 11429336
      },
      {
        "id": "austria",
        "parent": "westerneurope",
        "name": "Austria",
        "value": 8735453
      },
      {
        "id": "switzerland",
        "parent": "westerneurope",
        "name": "Switzerland",
        "value": 8476005
      },
      {
        "id": "luxembourg",
        "parent": "westerneurope",
        "name": "Luxembourg",
        "value": 583455
      },
      {
        "id": "monaco",
        "parent": "westerneurope",
        "name": "Monaco",
        "value": 38695
      },
      {
        "id": "liechtenstein",
        "parent": "westerneurope",
        "name": "Liechtenstein",
        "value": 37922
      },
      {
        "id": "australiaandnewzealand",
        "parent": "oceania",
        "name": "Australia and New Zealand"
      },
      {
        "id": "australia",
        "parent": "australiaandnewzealand",
        "name": "Australia",
        "value": 24450561
      },
      {
        "id": "newzealand",
        "parent": "australiaandnewzealand",
        "name": "New Zealand",
        "value": 4705818
      },
      {
        "id": "melanesia",
        "parent": "oceania",
        "name": "Melanesia"
      },
      {
        "id": "papuanewguinea",
        "parent": "melanesia",
        "name": "Papua New Guinea",
        "value": 6703273
      },
      {
        "id": "fiji",
        "parent": "melanesia",
        "name": "Fiji",
        "value": 905502
      },
      {
        "id": "solomonislands",
        "parent": "melanesia",
        "name": "Solomon Islands",
        "value": 611343
      },
      {
        "id": "newcaledonia",
        "parent": "melanesia",
        "name": "New Caledonia",
        "value": 276255
      },
      {
        "id": "vanuatu",
        "parent": "melanesia",
        "name": "Vanuatu",
        "value": 276244
      },
      {
        "id": "micronesia",
        "parent": "oceania",
        "name": "Micronesia"
      },
      {
        "id": "guam",
        "parent": "micronesia",
        "name": "Guam",
        "value": 164229
      },
      {
        "id": "kiribati",
        "parent": "micronesia",
        "name": "Kiribati",
        "value": 116398
      },
      {
        "id": "federatedstatesofmicronesia",
        "parent": "micronesia",
        "name": "Federated States of Micronesia",
        "value": 105544
      },
      {
        "id": "northernmarianaislands",
        "parent": "micronesia",
        "name": "Northern Mariana Islands",
        "value": 55144
      },
      {
        "id": "marshallislands",
        "parent": "micronesia",
        "name": "Marshall Islands",
        "value": 53127
      },
      {
        "id": "palau",
        "parent": "micronesia",
        "name": "Palau",
        "value": 21729
      },
      {
        "id": "nauru",
        "parent": "micronesia",
        "name": "Nauru",
        "value": 11359
      },
      {
        "id": "polynesia",
        "parent": "oceania",
        "name": "Polynesia"
      },
      {
        "id": "frenchpolynesia",
        "parent": "polynesia",
        "name": "French Polynesia",
        "value": 283007
      },
      {
        "id": "samoa",
        "parent": "polynesia",
        "name": "Samoa",
        "value": 196440
      },
      {
        "id": "tonga",
        "parent": "polynesia",
        "name": "Tonga",
        "value": 108020
      },
      {
        "id": "americansamoa",
        "parent": "polynesia",
        "name": "American Samoa",
        "value": 55641
      },
      {
        "id": "cookislands",
        "parent": "polynesia",
        "name": "Cook Islands",
        "value": 17380
      },
      {
        "id": "wallisandfutuna",
        "parent": "polynesia",
        "name": "Wallis and Futuna",
        "value": 11773
      },
      {
        "id": "tuvalu",
        "parent": "polynesia",
        "name": "Tuvalu",
        "value": 11192
      },
      {
        "id": "niue",
        "parent": "polynesia",
        "name": "Niue",
        "value": 1618
      },
      {
        "id": "tokelau",
        "parent": "polynesia",
        "name": "Tokelau",
        "value": 1300
      }
    ];
    
    /* leave only final nodes */
    for (var i = wdata.length - 1; i >= 0; i--) {
      wdata[i].group = wdata[i].parent;
      if (['easternafrica', 'westernafrica', 'northafrica', 'centralafrica', 'southafrica'].indexOf(wdata[i].group) !== -1) {
        wdata[i].group = 'africa';
      }
      if (['easternasia', 'westernasia', 'northasia', 'centralasia', 'southernasia', 'southeasternasia'].indexOf(wdata[i].group) !== -1) {
        wdata[i].group = 'asia';
      }
      if (['easterneurope', 'westerneurope', 'northerneurope', 'centraleurope', 'southerneurope'].indexOf(wdata[i].group) !== -1) {
        wdata[i].group = 'europe';
      }
      if (['carribean'].indexOf(wdata[i].group) !== -1) {
        wdata[i].group = 'centralamerica';
      }
      if (['australiaandnewzealand', 'melanesia', 'micronesia', 'polynesia'].indexOf(wdata[i].group) !== -1) {
        wdata[i].group = 'oceania';
      }
      if (wdata[i].id !== 'theworld') {
        wdata[i].parent = 'theworld';
      }
      if (!wdata[i].value && wdata[i].id !== 'theworld') {
        wdata.splice(i, 1);
      }
    }
    
    function render() {
    
      var cdata = {
        "type": "bubble-pack",
        "plotarea": {
          "margin": 10
        },
        "options": {
          "padding": 0,
          "min-size": 3,
          "group-filter": ["asia", "southamerica", "africa", "europe"],
          "format": {
            "short": true,
            "decimals": 2,
            "decimals-separator": ".",
            "thousands-separator": ","
          },
          "series": wdata
        }
      };
    
      zingchart.render({
        id: 'zc',
        width: 550,
        height: 550,
        output: 'svg',
        data: cdata
      });
    
    };
    
    render();