The number of 15-24 year old users setting up a Facebook profile dropped to 50% in 2009, down from 55% at the beginning of 2008. Meanwhile, the 25-34 bracket increased from 40% a year ago to 46% moving to Facebook. Those aged 35-54 saw the biggest growth, with 35% setting up an account, up 8% from last year.
The number of 15-24 year old users setting up a Facebook profile
