First of all there are no 22yo girls, you're a grown woman by then and have stopped growing. There are also no average size since all women look different. It's predisposed in your genes and can also be affected if you are on the pill.
I am a 11 year old girl and I have no boobs. So really the average size is none. I only have breast buds.
32A or 34A would be average bra size for a 12 year old girl.
34B
b or c
1 cm
There is no average since each girl/woman is different and breast size is based on DNA.
The average size is a 32 A or 34 A but if you are bigger or smaller its just how your body is growing
I think that a 16 year old girl's breast areola size should be around a size 16
It hard to say but i would say around 32 -36
That depends on the size of the girls breast and chest measurments.
There is no age-chart for breast size.
The average shoe size for a 2 year old girl is a US size 8. This size is in Adult size.