Google Chart Data table Nor working

Google Chart Data table Nor working

<script type="text/javascript">
        var data = '<%=jSerializer.Serialize(ObjList)%>';
        google.load("visualization", "1", { packages: ["corechart"] });
        google.setOnLoadCallback(drawChart);
       
        function drawChart()
        {
            var tabledata =new google.visualization.DataTable();
            tabledata.addRows(data.length);
            tabledata.addColumn('datetime', 'Timestamp');
            tabledata.addColumn('number', 'DataValue');
           
            $.each(data, function (i, v) {
                tabledata.setValue(i, 0, v.Date);
                tabledata.setValue(i, 1, v.DataValue);
            });

            var options = {
                title: 'Chemtrol DG Performance',
                vAxis: { title: 'Year', titleTextStyle: { color: 'red' } }
            };

            var chart = new google.visualization.BarChart(document.getElementById('divchart'));
            chart.draw(tabledata, options);

        }

    </script>