Question on dipers

So I want to start buying diapers but I don't know how many of each one type I should buy I'm a FTM I want to know what's the average more or less from newborn to 1 that I should stock up on. I don't know if this a ridiculous question or not but I don't want to end up with a bunch of newborn when I should have changed to 1. Help please .thanks very appreciated