Add a Count Indicator to the Build Stats gadget in addition to the Success Rate and Duration that displays the total number of builds of the selected configuration run by day. Ideally, you could graph Total Count (total builds of that configuration) as well as Successful Count (builds that succeeded) and Failed Count (builds that failed). I realize this data is available via tooltip on the plotted lines for both Success Rate and Duration, but we also have a requirement to graph/track usage of a given configuration.