
  });

  return data;
}

var numberOfRequestsData = numberOfRequestsDataForGroup(stats);
var tickInterval = Math.ceil(numberOfRequestsData.names.length / 1000);

new Highcharts.Chart({
  chart: {
    renderTo:'container_number_of_requests',
    polar:true,
    type:'column',
    height:330
  },
  credits:{
    enabled:false
  },
  title:{
    text:'<span class="chart_title">Number of requests</span>',
    useHTML: true,
    widthAdjust:-20
  },
  xAxis:{
    tickmarkPlacement:'on',
    tickInterval: tickIn