18 year old recruits and national titles

Most recruits enter college when they are 18 years old. So, in their lifetime, what teams (and conferences) have won national titles? Here you go:

2007 - Florida
2006 - Florida
2005 - UNC
2004 - UConn
2003 - Syracuse
2002 - Maryland
2001 - Duke
2000 - MSU
1999 - UConn
1998 - Kentucky
1997 - Arizona
1996 - Kentucky
1995 - UCLA
1994 - Arkansas
1993 - UNC
1992 - Duke
1991 - Duke
1990 - UNLV

ACC - 6
SEC - 5
Big East - 3
Pac 10 - 2
B10 - 1
Other - 1

So the B10 has ONE national title in the last 18 years. The ACC and SEC account for 11 of the 18 titles. What about the 18 years prior to that?

1989 - Michigan
1988 - Kansas
1987 - Indiana
1986 - Louisville
1985 - Villanova
1984 - Georgetown
1983 - NC State
1982 - UNC
1981 - Indiana
1980 - Louisville
1979 - MSU
1978 - Kentucky
1977 - Marquette
1976 - Indiana
1975 - UCLA
1974 - NC State
1973 - UCLA
1972 - UCLA

B10 - 5
Big East - 5
Pac 10 - 3
ACC - 3
Big 12 - 1
SEC - 1

(I'm using current conference affiliation above for Marquette and Louisville)

Conclusion?

The B10 needs to get better. Now.