Google LineChart: возможна проблема с линейным графиком, объединяющим 3 массива данных в одну диаграмму?

google.charts.load('current', {
    packages: ['corechart']
  }).then(function () {
    var charts = {};
    var options = {
      Column: {
        chartArea: {
          height: '100%',
          width: '100%',
          top: 24,
          left: 64,
          right: 32,
          bottom: 48,
        },
        tooltip: {
          valueDecimals: 2,
          valueSuffix: ' USD',
          valuePrefix: '$'
        },
        'vAxis': { 
          title: 'Cost in USD ($)', format:'$#',
        },
        height: '100%',
        legend: {
          position: 'bottom'
        },
        pointSize: 4,
        width: '100%'
      },
   
};
  //  columns charts data
  var jsonData = [["2017-01-01", 83578], ["2017-02-01", 208529], ["2017-03-01", 211377], ["2017-04-01", 215149], ["2017-05-01", 215149]];
  loadData(jsonData, '1', 'Line');
  var data2 = [["2017-02-01", 332], ["2017-03-01", 341], ["2017-04-01", 339], ["2017-05-01", 339]]; 
 
  // load json data
  function loadData(jsonData, id, chartType) {
    // create data table
  var dataTable = new google.visualization.DataTable();
 
    switch (chartType) {

       case 'Line':
       
      var chartData = [];
        chartData.push(['date', 'Cost']);
        jsonData.forEach(function (row) {
        chartData.push([row[0], parseFloat(row[1])]);
        });

  var dataTable = google.visualization.arrayToDataTable(chartData);
    // drawChart();
    
     
   // var chartData = [];
      //  chartData.push(['date', 'Cost']);
      //  data2.forEach(function (row) {
     //   chartData.push([row[0], parseFloat(row[1])]);
   //     });

  //var dataTable = google.visualization.arrayToDataTable(chartData);
    
    //var joinedData = google.visualization.data.join(data1, data2, 'full', [[0, 0]], [1], [1]);
    break;
         
     }
    // draw chart
    $(window).resize(function () {
      drawChart(id, chartType, dataTable);
    });
    drawChart(id, chartType, dataTable);
  }
  // draw chart
  function drawChart(id, chartType, dataTable) {
    if (!charts.hasOwnProperty(id)) {
      charts[id] = new google.visualization.ChartWrapper({
        chartType: chartType + 'Chart',
        containerId: 'chart-' + id,
        options: options[chartType]
      });
    }
    charts[id].setDataTable(dataTable);
    charts[id].draw();
  }
});

html, body {
  height: 100%;
  margin: 0px 0px 0px 0px;
  overflow: hidden;
  padding: 0px 0px 0px 0px;
}

.chart {
  height: 100%;
}

<script src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src = "https://www.gstatic.com/charts/loader.js"></script>
<div class = "chart" id = "chart-1"></div>