rcentage 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: {
      groupPadding: 0,
      stacking: 'normal',
	    shadow: true
    }
  },
  series: [
  	{
type: 'column',
color: '#68b65c',
name: 'OK',
data: [
  6.22,0.54,0.5,0.37,0.25,0.3,0.56,0.44,0.32,0.17,0.12,0.16,0.11,0.32,0.2,0.1,0.06,0