Originally Posted by gully
I have some NCAA statistics on men's tennis participation from three data points: 1981-82, 2004-05, and 2009-10 (most recent available).
Men's Tennis, 1981-82: 690 teams overall (267 D1); 7,340 participants (2,884 D1)
Men's Tennis, 2004-05: 742 teams overall (265 D1); 7,386 participants (2,613 D1)
Menís Tennis, 2009-10: 738 teams overall (258 D1); 7,894 participants (2,644 D1)
I don't know if men's tennis participation in NAIA has been similar or not, but in NCAA's three divisions, it has remained pretty static, with the number of teams and participants both increasing.
US Population 1980: 227,224,681
US Population 2010: 308,745,538
I think there are more people fighting for those spots now than there was in 1980. That point I concede to the anti-foreigner movement.