Oh la la! Oh la la!
Seriously... I found this very interesting, but for some country (i'm from Italy) maybe the charts are not so accurate (maybe yes, I'm not an expert ;-( ). Despite everything, very nice idea
Thanks! Also from Italy :) For Italian hits I took data from this repo: https://www.hitparadeitalia.it//hp_yends/ But yes, there might be mistakes across the charts. Sources used are documented here: https://github.com/matteocantiello/88mph