108', '50708', '51308', '51908', '52508', '53108', '53708', '54308', '54908', '55508', '56108', '56709', '57309', '57909', '58509', '59109', '59709'],
    tickInterval: 20
  },
  yAxis: {
    min: 0,
    title: { text: 'Percentage of Requests' },
    reversedStacks: false
  },
  tooltip: {
    formatter: function() {
      return '<b>'+ this.x +' ms</b><br/>'+
      this.series.name +': '+ this.y +' %<br/>'+
      'Total: '+ this.point.stackTotal + ' %';
    }
  },
  plotOptions: {
    series: {
      group