iirc and based on what I noticed and heard, Japan and Korea sent about 10-11 players each~, only 2 didn't make the top 32 (Mimi and Kkokkoma). Thailand and Philippines sent 1 each, both made top 32. Pakistan sent 2 players, they placed 2nd and 3rd. I don't remember how many EU sent (I think it was about 30 but I may be mixing it up with another event) but at least 6 made the top 32.
Finally... the US had over a thousand players, none made the top 8. Ouch.