What is the correct order that the Pacman ghosts should be in?

clyde (yellow), inky (blue), Pinky (pink), Blinky (Red).

I'm sure Blinky should be last as he is the most powerful ghost (ability to speed up as the game progresses etc...) But what about the others?

This may seem a strange thing to be asking, but it's a forum icon related thing I've come up with and more will become clear very soon.