For those who know what EV's are, does anyone know when you first catch a pokemon if they already have EV, or starter pokemon as well?

I'm making an exact replicate of the game, and I need to figure this out. Thanks.

P.S. If they do start with EV's, then is there a way to figure out how many they start with, based on their stats/level?
Serebii is your answer, my friend.