Total short losses 26oct12 - 27feb14 (close):
Trading: $5,985 million
Interest paid: $275 million
Total losses from shorting: $6,261 million
Note that these are only the losses in the common. It is fair to assume a lot of shorting has taken place by means of options as well, in particular during the time when there were no shares available to short. So the Tsunamometer© probably underestimates the hurt of the shorts significantly.