well, I think the average family here is 2 to 3 kids. but when you go the many decades back and factor in the rural area I live in, the average family had about 9 kids lol.
my mom has 11 brothers and sisters, 4 half-sisters, and 4-step brothers. and there's a huge age difference between the oldest and the youngest, like probably 40+ years. then my dad has 4 sisters, a brother, and 2 half-sisters.
but I have a lot of cousins from my great-aunts and great-uncles and stuff. I actually know several of my 5th and 6th cousins.