text: 
  
  $.getJSON('https://www.highcharts.com/samples/data/jsonp.php?filename=world-population.json&callback=?', function (data) {
  
      Highcharts.mapChart('container', {
          chart: {
              borderWidth: 1,
              map: 'custom/world'
          },
  
          title: {
              text: 'World population 2010 by country'
          },
  
          subtitle: {
              text: 'Negative color demo. Red bubbles are smaller than the UK.'
          },
  
          legend: {
              enabled: false
          },
  
          mapNavigation: {
              enabled: true,
              buttonOptions: {
                  verticalAlign: 'bottom'
              }
          },
  
          series: [{
              name: 'Countries',
              color: '#E0E0E0',
              enableMouseTracking: false
          }, {
              type: 'mapbubble',
              negativeColor: '#FF0022',
              zThreshold: 62036,
              joinBy: ['iso-a2', 'code'],
              data: data,
              name: 'Population 2010',
  
              minSize: 4,
              maxSize: '12%',
              tooltip: {
                  pointFormat: '{point.code}: {point.z} thousands'
              }
          }]
      });
  
  });
  