I'm pretty confident this is false. It's been repeated a lot in articles (including the usually solid Bruce Schneier), but in an admittedly brief search, I can find no evidence to back it up.

Iowa is one of the largest pork producing states, and I can't find any mention of the deaths by pigs in the years I paged through: http://www.public-health.uiowa.edu/face/Summaries/index.html

New Mexico, a mostly rural state with a significant number of animal caused fatalities, does not seem to attribute any deaths to pigs out of the 63 deaths (including 2 by sheep) reported here: http://www.nmwild.org/wp-content/uploads/animalrelated.pdf

I can't find recent data from the CDC, but this report has fairly complete coverage from 1991-2001. Snakes are at 5 per year for the US, spiders 6, bees and wasps at 50, but pigs are not mentioned specifically anywhere in the report: http://www.scark.org/docs/Animal%20Related%20Fatalities.pdf

My best guess is that this number was either intended as sample copy and left in a final report, falsely conflates "other specified animal" with pigs, is a worldwide rather than US/Canada specific number, or attempts to included deaths from "swine flu" as death due to a pig. Please don't repeat this trope unless you have better evidence that it is indeed true.