 '<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: [
  2.87,4.49,2.44,2.07,1.67,1.25,1.41,1.04,1.42,1.27,1.14,1.54,1.12,1.4,1.35,0.93,1.24,0.79,1.08,1.0,0.62,0.68,0.39,0.52,0.46,0.31,0.36,0.22,0.15,0.25,0.19,0.17,0.07,0.16,0.06,0.13,0.12,0.06,0.0