Black Bears killed 25 people in 20 years.
About 1.25 fatal attacks per year in North America.
The most deaths have occurred in British Columbia, Canada (6), with Quebec, Canada (3) and Alaska (3) tied for second most.
LIST OF FATAL BLACK BEAR ATTACKS IN NORTH AMERICA OVER THE LAST 20 YEARS
Read about Brown (Grizzly) and Polar Bear fatalities on Wikipedia.