Brilliant infographic shows how long each Doctor on Doctor Who was on the air!

Take a look at this brilliant Doctor Who infographic that shows fans how each Doctor ranks against each other in terms of how long each Doctor was actually on the air. Peter Capaldi's Doctor is not on this graph since he has not had his own episode yet and the War Doctor is not present either.  By a large margin, Tom Baker's Fourth Doctor is the longest running Doctor with William Hartnell's Doctor coming in second. It's a shame to see some Doctor's runs so short.

If you had to take a guess, where do you think Peter Capaldi's Doctor will fall on this chart?
*Open image in new window to get largest view.

Source:  io9