I got the age stats, too. Mind, these are mortal ages, so the ages of humans and the ages vampires were when they were turned. (Also, it may not be exact, because I couldn't find mortal ages for some of the vampires and some of the characters may be inactive.)
Not that it matters, but the vampires make up the bulk of the 16-23 bracket, and humans make up the bulks of the 24-30 bracket. Everything over 30 just about evens out.
Hope this is helpful for any reason. xD [/ocd]