Pitbulls and Rottweilers make up just 5% of all breeds advertised from the Lower Mainland in the AAS database, although they account for almost 50% of fatal attacks in the U.S. from 1979 to 1998:
Dr. Jeffrey Sacks - Center for Disease Control and Prevention. Dog breed and number of deaths.
Pit Bull -- 76
Rottweiler -- 44
German Shepherd -- 27
Husky -- 21
Malamute -- 15
Wolf-Dog Hybrid -- 14
Mixed Breed -- 12
Chow-Chow -- 11
Doberman-Pinscher -- 9
Great Dane -- 8
St. Bernard -- 8