Year-by-Year Breakdown of Law Enforcement Deaths throughout U.S. History
"The 1920s were the deadliest decade in law enforcement history, when a total of 2,417 officers died, or an average of almost 241 each year. The deadliest year in law enforcement history was 1930, when 301 officers were killed. That figure dropped dramatically in the 1990s, to an average of 162 per year."
1974 saw 280 police deaths--I'm sure the new race hustlers can outdo that record.
I seem to recall reading that most police deaths these days come from traffic accidents.