More history in perf.haskell.org graphs

Hi Joachim, The graphs like https://perf.haskell.org/ghc/#graph/buildtime/make are very helpful, but I haven't found a way to adjust the range of commits shown from the default of the last 50 commits. For example, suppose I wanted to see the history of build time over the past 12 months and then narrow in on commits that caused regressions. Is there a way to do that using the https://perf.haskell.org/ghc/ website? Failing that, is the data that goes into these graphs available for download in some form? Regards, Reid Barton