Numbers in the news.

1 Number of doctors in Niger per 33,000 people, compared with 1 doctor per 180 people in the U.S.

SOURCE: THE NEW YORK TIMES

$31,916 Average cost of tuition, room and board, and other expenses for a student attending a private university in the U.S.

SOURCE: THE NEW YORK TIMES

259% Percentage by which paid music downloads have increased so far in 2005.

SOURCE: INTERNATIONAL FEDERATION OF THE PHONOGRAPHIC INDUSTRY

10,000 Number of tigers living as pets in the U.S., compared with 4,000 living in the wild...