Numbers Game: Fleeting Fitness

According to a 2007 study published in Health Economics, the percentage of high schools in the United States offering physical education on a daily basis declined from 41.6 percent in 1991 to __________ percent in 2003.

a) 34.9
b) 38.2
c) 28.4
d) 30.7

Leave your guess in the "comments" section and come back on Tuesday for the answer.