[2022] Season 13 legend pick rates so far.

Hi hi, I have two questions:

1) How does the data for this get collected? I'm curious from a methodology standpoint just asking as a fellow gamer. I'm trying to theorycraft how I would do it if I didn't have direct access to the game code and all my ideas seem super wack. You don't have to tell me if you dont wanna!

2) Secondly, more of a feedback: If you're trying to show pickrate you're not just trying to convey the order of legends but the space between them. This visualization is basically making me hunt down the percentages and compare them in my head and maybe notice the deltas. Two ways to do it 1) bar chart, 2) the numbers in the boxes could be the change in pickrate itself (the delta), similar to how a F1 race displays intervals on the left side of the screen.