23, still I think you made the poll to "narrow" on certain age groups and to big in others (18-25 = 7 years, 26-30=5 years).
No a flame, but the poll would be better with only 5 year spans, like 16-20, 21-25, 26-30 etc.
Like the idea with a age poll though, I guess the majority of the people in here are less then 25 !!!