HELP! I know this is a weird questin but I need some cycling stats...

Have you tried Google yet?  Something that specific might be a bit tough.  LBS's/Mechanics might be able to give you an idea depending on how into it they are.  You could also shoot an email to the contact info on some of the more prominent bike dealers, they might (big emphasis on that) be willing to help since many of them likely try to keep some idea as to what their target audience is.

bts

Try this for a start:

http://stlbiking.com/demographics.htm

Then if you need more, Google "Cycling Demographics"

Didn't have a lot time to look through all the search results, but I hope this helps.