By Column: Everything | Demographics | Sexual History | Attitudes | Relationships | Dating | Hookups
Alphabetically: Everything | Demographics | Sexual History | Attitudes | Relationships | Dating | Hookups
year
| Variable Summary | Undergrad | Freshman | Sophomore | Junior | Senior |
| Sexually active students: | Undergrad | Freshman | Sophomore | Junior | Senior |
| Casual-sexually active students: | Undergrad | Freshman | Sophomore | Junior | Senior |
| hookups (year or hookup__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.64 (1.62) | 2007.66 (1.64) | 2007.62 (1.59) | |||
| 1981 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1984 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1985 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1986 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1987 | 1 | 0.01% | 1 | 0.02% | 0 | 0.00% |
| 1988 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1990 | 1 | 0.01% | 1 | 0.02% | 0 | 0.00% |
| 1991 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1992 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1993 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1995 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1997 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1998 | 1 | 0.01% | 1 | 0.02% | 0 | 0.00% |
| 1999 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2000 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 5 | 0.07% | 4 | 0.08% | 1 | 0.04% |
| 2003 | 13 | 0.17% | 11 | 0.22% | 2 | 0.08% |
| 2004 | 78 | 1.04% | 64 | 1.27% | 14 | 0.57% |
| 2005 | 551 | 7.35% | 360 | 7.16% | 190 | 7.74% |
| 2006 | 1204 | 16.06% | 780 | 15.52% | 421 | 17.14% |
| 2007 | 1742 | 23.23% | 1111 | 22.11% | 627 | 25.53% |
| 2008 | 1636 | 21.82% | 1144 | 22.76% | 490 | 19.95% |
| 2009 | 1121 | 14.95% | 800 | 15.92% | 319 | 12.99% |
| 2010 | 970 | 12.94% | 637 | 12.67% | 329 | 13.40% |
| 2011 | 176 | 2.35% | 112 | 2.23% | 63 | 2.57% |
| Missing |
5
(0.07%) |
– |
3
(0.06%) |
– |
2
(0.08%) |
– |
| Total | 7504 | 100% | 5029 | 100% | 2458 | 100% |
| dates (year or date__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.59 (1.60) | 2007.58 (1.60) | 2007.59 (1.60) | |||
| 1980 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1981 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1982 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1985 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1987 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1989 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1990 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1991 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1992 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1993 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1994 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1995 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1996 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1997 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1998 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1999 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2000 | 2 | 0.03% | 1 | 0.02% | 1 | 0.05% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 4 | 0.06% | 4 | 0.09% | 0 | 0.00% |
| 2003 | 20 | 0.31% | 15 | 0.35% | 5 | 0.24% |
| 2004 | 78 | 1.22% | 65 | 1.51% | 13 | 0.62% |
| 2005 | 482 | 7.54% | 329 | 7.66% | 153 | 7.34% |
| 2006 | 1092 | 17.07% | 709 | 16.51% | 379 | 18.19% |
| 2007 | 1490 | 23.30% | 947 | 22.05% | 540 | 25.91% |
| 2008 | 1349 | 21.09% | 962 | 22.40% | 384 | 18.43% |
| 2009 | 962 | 15.04% | 679 | 15.81% | 281 | 13.48% |
| 2010 | 793 | 12.40% | 512 | 11.92% | 278 | 13.34% |
| 2011 | 124 | 1.94% | 72 | 1.68% | 50 | 2.40% |
| Missing |
55
(0.85%) |
– |
34
(0.79%) |
– |
21
(1.00%) |
– |
| Total | 6451 | 100% | 4329 | 100% | 2105 | 100% |
These tables reflect only undergraduates attending 4-year colleges who are of normative age -- 18, 19, 20, 21, or 22, +/- 1, for freshman, sophomores, juniors, and seniors, respectively.