00', '45300', '45900', '46500', '47100', '47700', '48300', '48900', '49500', '50100', '50700', '51300', '51900', '52500', '53100', '53700', '54300', '54900', '55500', '56100', '56700', '57300', '57900', '58500', '59100', '59700'],
    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: '+ thi