High performance ASP.NET MVC Sparkline Charts

@Html.EJS().Sparkline("spark").DataSource(Model).XName("xval").YName("yval").Height("100").Width("70").Render()

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View(DataSource.GetData());
    }
}
public class DataSource
{
    public int x;
    public string xval;
    public double yval;
    public static List<DataSource> GetData()
    {
        List<DataSource> data1 = new List<DataSource>();
        data1.Add(new DataSource() { x = 0, xval = "2005", yval = 20090440 });
        data1.Add(new DataSource() { x = 1, xval = "2006", yval = 20264080 });
        data1.Add(new DataSource() { x = 2, xval = "2007", yval = 20434180 });
        data1.Add(new DataSource() { x = 3, xval = "2008", yval = 21007310 });
        data1.Add(new DataSource() { x = 4, xval = "2009", yval = 21262640 });
        data1.Add(new DataSource() { x = 5, xval = "2010", yval = 21515750 });
        data1.Add(new DataSource() { x = 6, xval = "2011", yval = 21766710 });
        data1.Add(new DataSource() { x = 7, xval = "2012", yval = 22015580 });
        data1.Add(new DataSource() { x = 8, xval = "2013", yval = 22262500 });
        data1.Add(new DataSource() { x = 9, xval = "2014", yval = 22507620 });
        return data1;
    }
}