Numbers

By Kathleen Adams, Val Castronovo, Randy Hartwell, Joel Stein, Ellin Martens, Joseph Pierro, Sora Song and Josh Tyrangiel

42 Deaths from U.S. military accidents so far in 2001, nearly twice the number killed in 2000

42 Law-enforcement officers killed on duty in the U.S. in 1999, the lowest number on record

4 Percent by which Chicago's population has grown since 1990

50 Years since the city's population last grew

$35 million Elvis Presley's earnings last year, topping Forbes' list of the highest-paid deceased celebrities; $15 million came from admissions revenue at Graceland

$400,000 Admissions revenue at the Richard Nixon Library in 1999

38 Seconds it took the fastest hamster to run a track during races in London

325 Average number of bets per hamster race since the competitions were introduced, compensating for a decrease in horse racing owing to foot-and-mouth disease

Sources: New York Post; Associated Press; New York Times; Forbes; Richard Nixon Library; Associated Press