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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['2020-08-14',455139,null,820,null,null],
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['2020-08-18',456927,null,669,null,null],
['2020-08-19',457368,null,637,null,null],
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});