Hey G@Gers, What's your blood group? At what age did you find out about yours (optional)?

The question is simple as above :)

I need some data regarding my project on blood grouping, so thought posting here might help a bit.

Thanks ^_^
AB+ / AB-
O+ / O-
A+ / A-
B+ / B-
Still don't know :P
Select gender and age to cast your vote:
Hey G@Gers, What's your blood group? At what age did you find out about yours (optional)?
Post Opinion