| Lifelong | Lifelong | ||||
|---|---|---|---|---|---|
| Undergraduate | Graduate | Undergraduate | Graduate | TOTAL | |
| Year | Headcount | Headcount | Headcount | Headcount | Headcount |
| Spring 2007 | 20,197 | 6,232 | 2,075 | 912 | 29,416 |
| Spring 2006 | 19,353 | 6,114 | 2,097 | 969 | 28,533 |
| Spring 2005 | 18,893 | 5,933 | 2,241 | 799 | 27,866 |
| Spring 2004 | 18,929 | 5,686 | 2,417 | 845 | 27,877 |
| Spring 2003 | 18,797 | 5,539 | 2,338 | 905 | 27,579 |
| Spring 2002 | 18,651 | 5,650 | 2,209 | 860 | 27,370 |
| Spring 2001 | 18,264 | 5,323 | 2,282 | 868 | 26,737 |
| Spring 2000 | 18,032 | 4,845 | 2,288 | 1,198 | 26,363 |
| Spring 1999 | 17,974 | 5,179 | 2,156 | 770 | 26,079 |
| Spring 1998 | 17,977 | 5,061 | 2,007 | 519 | 25,564 |
| Spring 1997 | 17,443 | 5,682 | 2,012 | 581 | 25,718 |
| Spring 1996 | 17,301 | 5,168 | 2,089 | 664 | 25,222 |
| Spring 1995 | 17,343 | 5,203 | 2,438 | 742 | 25,726 |
| Spring 1994 | 17,199 | 4,997 | 2,541 | 770 | 25,507 |
| Spring 1993 | 17,298 | 4,643 | 3,601 | 25,542 | |
| Spring 1992 | 17,400 | 4,351 | 3,756 | 25,507 | |
| Spring 1991 | 17,121 | 4,067 | 3,953 | 25,141 | |
| Spring 1990 | 16,435 | 4,024 | 3,903 | 24,362 | |
| Spring 1989 | 15,883 | 3,825 | 3,698 | 23,406 | |
| Spring 1988 | 15,741 | 3,684 | 3,353 | 22,778 | |
| Spring 1987 | 15,313 | 3,739 | 2,780 | 21,832 | |
| Spring 1986 | 15,492 | 3,616 | 3,138 | 22,246 | |
| Spring 1985 | 15,736 | 3,363 | 2,815 | 21,914 | |
| Spring 1984 | 15,288 | 3,214 | 2,878 | 21,380 | |
| Spring 1983 | 14,862 | 3,051 | 3,079 | 20,992 | |
| Spring 1982 | 14,198 | 2,810 | 3,256 | 20,264 | |
| Spring 1981 | 13,626 | 2,716 | 2,644 | 18,986 | |
| Spring 1980 | 13,266 | 2,544 | 2,918 | 18,728 | |
| Spring 1979 | 12,544 | 2,541 | 2,652 | 17,737 | |
| Spring 1978 | 12,376 | 2,499 | 2,125 | 17,000 | |
| Spring 1977 | 12,890 | 2,433 | 1,175 | 16,498 | |
| Spring 1976 | 13,153 | 2,365 | 1,024 | 16,542 | |
| Spring 1975 | 11,637 | 2,208 | 1,620 | 15,465 | |
| Spring 1974 | 10,280 | 1,970 | 1,195 | 13,445 | |
| Spring 1973 | 9,836 | 1,948 | 1,045 | 12,829 | |
| Spring 1972 | 9,622 | 1,945 | 1,194 | 12,761 | |
| Spring 1971 | 9,365 | 2,058 | 1,124 | 12,547 | |
| Spring 1970 | 8,745 | 1,907 | 1,140 | 11,792 | |
| Spring 1969 | 8,295 | 1,801 | 1,057 | 11,153 | |
| Spring 1968 | 7,557 | 1,815 | 1,020 | 10,392 | |
| Spring 1967 | 7,023 | 1,663 | 788 | 9,474 | |
| Spring 1966 | 6,983 | 1,412 | 699 | 9,094 | |
| Spring 1965 | 6,603 | 1,178 | 548 | 8,329 | |
| Spring 1964 | 5,939 | 1,055 | 535 | 7,529 |