google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
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       data.addColumn('number', 'DL数');
       data.addColumn('number', 'Googleセルラン');
       data.addColumn('number', 'iOSセルラン');
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['2020-08-05',458652,null,null,null,null],
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['2020-08-07',459138,null,null,null,null],
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['2020-08-10',459937,null,null,null,null],
['2020-08-11',460373,null,null,null,null],
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['2020-10-01',469952,null,null,null,null]
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    legend: {position: 'top' },
    vAxes:[
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    series: {
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        color: 'seagreen',                
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      2:{
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    tooltip: { trigger: 'both' },
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  google.visualization.events.addListener(chart, 'click', function() {
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});