too many xaxis labels

by kzoon

HTML

<script src="http://code.highcharts.com/highcharts.js"></script>
<div id="container" style="height: 400px"></div>

JavaScript

$(function () {
    $('#container').highcharts({


        "chart": {
            "type": "column",
            "animation": false,
            "borderRadius": 0,
            "backgroundColor": "rgba(255,255,255,1)",
            "plotBackgroundColor": "rgba(255,255,255,0)",
            "spacingBottom": 10,
            "scAnimateChanges": false
        },
        "pane": {},
        "title": {
            "text": ""
        },
        "subtitle": {
            "text": ""
        },
        "legend": {
            "backgroundColor": "rgba(255,255,255,0)",
            "itemStyle": {
                "fontFamily": "'Lucida Grande', 'Lucida Sans Unicode'",
                "fontSize": "11px",
                "color": "rgba(102,102,102,1)"
            }
        },
        "tooltip": {
            "enabled": true,
            "style": {
                "fontFamily": "'Lucida Grande', 'Lucida Sans Unicode'",
                "fontSize": "11px",
                "color": "rgba(102,102,102,1)"
            },
            "hideDelay": 10
        },
        "plotOptions": {
            "column": {
                "animation": {
                    "duration": 0
                },
                "shadow": false,
                "stickyTracking": false,
                "zIndex": 1,
                "dataLabels": {
                    "enabled": false,
                    "borderColor": "rgba(0,0,0,1)",
                    "style": {
                        "fontFamily": "'Lucida Grande', 'Lucida Sans Unicode'",
                        "fontSize": "11px",
                        "color": "rgba(102,102,102,1)",
                        "lineHeight": "auto"
                    },
                    "scFormat": {
                        "yValue": {
                            "enabled": true
                        }
                    },
                    "scSelection": {}
                },
                "scTooltipFormat": {
                    "category": {
                    ...