谷歌圖表顯示錯誤數據

我在創建Google圖表的數據圖表時遇到了一些麻煩，我不知道爲什麼我的圖表以這種方式顯示？谷歌圖表顯示錯誤數據

enter image description here

正如你可能會在圖片中看到的Y值應該是2，但我得到一個3左右。什麼會導致這個問題？

這是我當前的代碼：

private DataTable GetData() 
{ 

    DataTable dt = new DataTable(); 

    string cmd = "SELECT TotalShipped, TotalOnTime, TotalOnTime/TotalShipped * 100 AS LISC" + 
" FROM (SELECT COUNT(*) AS TotalShipped, SUM(CASE LISC WHEN 100 THEN 1.0 ELSE 0.0 END) AS TotalOnTime" + 
        " FROM dbo.tbl_LISC) AS t"; 

    SqlDataAdapter adp = new SqlDataAdapter(cmd, conn); 

    adp.Fill(dt); 

    return dt; 

}

和：

private void BindChart() 
{ 

    DataTable dt = new DataTable(); 

    try 
    { 

     dt = GetData(); 



     str.Append(@"<script type=*text/javascript*> google.load(*visualization*, *1*, {packages:[*corechart*]}); 

        google.setOnLoadCallback(drawChart); 

        function drawChart() { 

    var data = new google.visualization.DataTable(); 

    data.addColumn('number', 'TotalOnTime');  

    data.addColumn('number', 'LISC'); 


    data.addRows(1);"); 


     for (int i = 0; i <= dt.Rows.Count - 1; i++) 
     { 

      str.Append("data.setValue(" + i + "," + 1 + "," + "'" + dt.Rows[i]["LISC"].ToString() + "');"); 

      str.Append("data.setValue(" + i + "," + 0 + "," + dt.Rows[i]["TotalOnTime"].ToString() + ") ;"); 

     } 

     str.Append(" var chart = new google.visualization.BarChart(document.getElementById('chart_div'));"); 

     str.Append(" chart.draw(data, {width: 1850, height: 500,bars: 'horizontal', title: 'Materiales',"); 

     str.Append("hAxis: {title: 'LISC', titleTextStyle: {color: 'green'},viewWindow:{max:100,min:0}}"); 


     str.Append("}); }"); 

     str.Append("</script>"); 

     lt.Text = str.ToString().Replace('*', '"'); 

    } 
    catch 
    { 

    } 

}

這是查詢結果：

enter image description here