Get your top 10 from the last year mixxx history
sqlite> SELECT COUNT(l.id), l.artist, l.title FROM Playlists p, PlaylistTracks t, library l ON t.playlist_id=p.id WHERE strftime('%Y',p.date_modified)=strftime('%Y', date('now', '-1 year')) AND p.hidden=2 AND t.track_id=l.id GROUP BY l.id ORDER BY COUNT(l.id) DESC LIMIT 10;