A few specific stats that I'd like to see

I recently went and made a spreadsheet to analyze my liked songs playlist and it got me realizing a few (not many) data points aren't in the stats.fm (atleast as far as i can tell)

My main thing is the ability to see what years/decades you listen to the most, either all time or in a time period.

Then there's loudness, popularity, BPM, and valence, which are all listed on individual tracks (and for popularity, album and artists). I'm a bit curious how it would be to have average or numbers of those like there is for energetic, danceable, etc