Because someone has to keep score, Vulture did it for us. Thanks, Vulture! They not only put together a montage of all the walker deaths from the first half of The Walking Dead Season 3, they included a handy sheet of how the walkers were killed — using a gun, katana, knife, etc.
It just seems to be zombie/walker/biter deaths, though, and not the many humans who have also lost their lives so far this season, including Lori, T-Dog, Oscar, all the other prisoners (except Axel), some Woodbury guys, the crazy man in the cabin, that guy with the name Merle couldn't pronounce, the National Guard soldiers, and Donna, who was with Tyreese's group. Who else?