I was surprised. I, who relates selfies to cries for attention, expected profile pictures to command attention proportional to the time their owner's had invested in building their social friend pool. I had hypothesized that the more Facebook friends the more likes due to higher 'popularity'. Are not likes supposed to amount to currency on Facebook? Alas, this does not seem to be the case. Perhaps the reason that people with less friends get more likes is that these friends will tend to be closer (think hand-picked) to the account owner and hence more likely to interact (via a like) with their online lives. The graph also shows that women are more likely to garner likes and that most people have 'limited' (used relatively as I doubt even a few of us know 500 people well) friend circles.