public IActionResult Relative(string metric, string option = ViewModelService.NORM_POPULATION)
{
PlotViewModel model = _covidService.GetRelativeViewModel(metric, option, ViewModelService.MIN_DEATHS_MILLION);
ViewData["Metric"] = metric;
ViewData["Method"] = System.Reflection.MethodBase.GetCurrentMethod().Name;
ViewData["Title"] = "Relative";
ViewData["YLabel"] = metric + " / " + option;
ViewData["TooltipDecimals"] = 2;
ViewData["YMin"] = 1;
ViewData["YType"] = "linear";
ViewData["YTickInterval"] = 1;
ViewData["XLabel"] = $"Days from 1 {metric} / million";
return(View("Plot", model));
}