alot of the best athletes canada has come from either ontario or quebec havent you noticed that? very rarely does someone from say manitoba or B.C go on to do great things in any sport
but since you asked, just to name a few for quebec:
maybe 90% was a generous number, more like 80%
Yeah, if you include Ontario, then that is true. Ontario produces more athletes than any other province, that was why I was a bit shocked when you said Quebec.
I think in terms of provinces its: