The great thing about Facebook is that there is a lot of information on the site and the users. What this means for us is that researchers are coming up with all sorts of facts and figures on the habits of Facebook users.
One cool fact is that on average the Facebook user changed their profile image up to eighteen times last year, but in 2007 this figure was only six times. Check out this cool info graphic below, this explains just how what sort of information there is around regarding profile images and Facebook users.
Source [All Facebook]