Test with 0

Test with 0

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>

<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>

JavaScript

$(function() {

  $('#container').highcharts({
    chart: {
      zoomType: 'xy'
    },

    tooltip: {
      shared: true
    },
    plotOptions: {
      series: {
        allowPointSelect: true,
        cursor: 'pointer',
        dataLabels: {
          enabled: false
        },
        events: {
          //click: ChartClick
        },
        showInLegend: false,
        stacking: 'normal'
      }
    },
    xAxis: {
      categories: ['25/07/14', '29/08/14', '26/09/14', '31/10/14', '28/11/14', '26/12/14', '30/01/15', '27/02/15', '27/03/15', '24/04/15', '29/05/15', '26/06/15', '31/07/15', '28/08/15', '25/09/15', '30/10/15', '27/11/15', '25/12/15', '29/01/16', '26/02/16', '25/03/16', '29/04/16', '27/05/16', '24/06/16', '29/07/16', '26/08/16', '30/09/16', '28/10/16', '25/11/16', '30/12/16', '27/01/17', '24/02/17', '31/03/17', '28/04/17', '26/05/17', '30/06/17'],
      tickPositioner: function() {
        var ret = this.tickPositions,
          len = ret.length - 1,
          last = this.categories.length - 1;
        while (ret[len] > last) {
          len--;
          ret.pop();
        }
        ret.push(last);
        return ret;
      }
    },
    yAxis: [{
      min: 0,
      opposite: true,
      title: {
        style: {
          font: '10px Trebuchet MS, Verdana, sans-serif'
        },
        text: 'Overall Activities'
      }
    }, {
      labels: {
        formatter: function() {
          return this.value;
        },
        style: {
          color: '#89A54E'
        },
        style: {
          font: '9px Trebuchet MS, Verdana, sans-serif'
        }
      },
      title: {
        style: {
          font: '10px Trebuchet MS, Verdana, sans-serif'
        },
        text: 'Weekly Activities'
      }
    }],
    series: [{
      data: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 17, 16, 15, 11, 6, 16, 45, 72, 77, 50, 72, 122, 76, 16, 0, 0, 0, 0, 0, 0],
      name: 'Target',
      type: 'column',
      color: '#6699CC',
      yAxis: 1
    },...