I think they are all different, depending on the adult size they will be..
Buddy gained 1lb monthly until he reached 1yr old at which point he was
13lbs. He stayed that size, which was nice for about two yrs then started
gaining ozs until he peeked at 4yrs old. 16lbs 5oz now he's 16lbs at almost
6yrs old. I thought he would never stop growing
