Here are some of those stats from the other side:
Dog Attack Deaths and Maimings, U.S. & Canada, September 1982 to June 25, 2010 - By Merritt Clifton - DogsBite.org
Study highlights
The combination of pit bulls, rottweilers, presa canarios, and their mixes:
80% of attacks that induce bodily harm
70% of attacks to children
83% of attack to adults
69% of attacks that result in fatalities
75% that result in maiming
Discussion notes:
Even if the pit bull category was "split three ways," attacks by pit bulls and their closest relatives would still outnumber attacks by any other breed.
Pit bulls are noteworthy for attacking adults almost as frequently as children, a characteristic not shared by any other breed.
Like I said -- I can't be sure of any statistics but these were compiled from actual dog bite reports. I tend to doubt just about all stats -- but the actual attacks can't be argued with. If only we could enforce responsible pet ownership!!!!