Numbers

By Ann Marie Bonardi, Val Castronovo, Matthew Cooper, Daren Fonda, Unmesh Kher, Benjamin Nugent, Michele Orecklin, Victoria Rainert and Josh Tyrangiel

13 Number of school killings last year, according to a Secret Service review released last week

52 Number of school killings in 1992, the peak year

82% Percentage of parents who say they plan to hand out treats at Halloween this year

18% Percentage of parents who say they plan to hand out healthy treats at Halloween this year

40 million Children in the former Soviet Union living in "genuine poverty," according to a recent study

$40 million Money allotted for free housing for Duma members in the Kremlin's proposed budget for 2001, according to a member of the Duma

3 billion Approximate number of units, or "letters," in the genome of a human being

3 billion Letters in the genome of a lab mouse, 95% decoded as of last week

Sources: AP, American Express Retail Index, the New York Times, the Wall Street Journal