10th anniversary | Statistics

Happy Annivesary if i am not to late to the party :O I saw a reddit thread (which i cant find right now), where a rioter, asked the community to send him questions about odd statistics going way back until s2? i think.

I am currently devolping a python project for a new feature for my stream. I am asking to get the following statistics simply because it would make a nice performance increase In the programm if it can look for the popular champs/skins at first. I would like to know some basic statistics:

• the % of played champs in normal/rank games in s8/9
• the % of choosen skins of the champions.

I know that this a ton of data but I am still trying my luck

Take care