Radar Chart with multiple graphs

HTML

<script type="text/javascript" src="http://www.amcharts.com/lib/3/amcharts.js"></script>
<script type="text/javascript" src="http://www.amcharts.com/lib/3/radar.js"></script>
<script type="text/javascript" src="http://www.amcharts.com/lib/3/themes/none.js"></script>
<div id="chartdiv"></div>

CSS

#chartdiv {
	width		: 100%;
	height		: 500px;
	font-size	: 11px;
}

JavaScript

var chart = AmCharts.makeChart("chartdiv", {
    "type": "radar",
    "theme": "none",
    "dataProvider": [{
        "activity": "Eating",
        "person1": 65,
        "person2": 28,
        "person3": 19
    },{
        "activity": "Drinking",
        "person1": 59,
        "person2": 48,
        "person3": 15
    },{
        "activity": "Sleeping",
        "person1": 90,
        "person2": 40,
        "person3": 44
    },{
        "activity": "Designing",
        "person1": 81,
        "person2": 19,
        "person3": 44
    },{
        "activity": "Coding",
        "person1": 56,
        "person2": 96,
        "person3": 77
    },{
        "activity": "Partying",
        "person1": 55,
        "person2": 27,
        "person3": 22
    },{
        "activity": "Running",
        "person1": 40,
        "person2": 100,
        "person3": 42
    }],
    "valueAxes": [{
        "axisTitleOffset": 20,
        "minimum": 0,
        "axisAlpha": 0.15
    }],
    "startDuration": 2,
    "graphs": [{
        "balloonText": "[[value]] hours per year",
        "lineColor": "#00338D",
        "lineThickness": 6,
        "fillAlphas": 0,
        "bullet": "round",
        "valueField": "person1"
    },{
        "balloonText": "[[category]] hours per year",
        "lineColor": "#BC204B",
        "lineThickness": 2,
        "fillAlphas": 0.5,
        "bullet": "round",
        "valueField": "person2"
    },
    {
        "balloonText": "[[value]] hours per year",
        "lineColor": "#00A3A1",
        "lineThickness": 2,
        "fillAlphas": 0.5,
        "bullet": "round",
        "valueField": "person3"
    }],
    "categoryField": "activity",
    "exportConfig": {
        "menuTop":"10px",
        "menuRight":"10px",
        "menuItems": [{
            "icon": '/lib/3/images/export.png',
            "format": 'png'
        }]
    }
});