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.) | 2007.47 (1.80) | 2007.49 (1.81) | 2007.42 (1.78) | |||
| 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 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 1988 | 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% |
| 1995 | 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 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 6 | 0.30% | 5 | 0.35% | 1 | 0.17% |
| 2003 | 17 | 0.84% | 11 | 0.77% | 6 | 1.04% |
| 2004 | 68 | 3.38% | 59 | 4.12% | 9 | 1.56% |
| 2005 | 185 | 9.19% | 130 | 9.08% | 55 | 9.52% |
| 2006 | 359 | 17.83% | 231 | 16.13% | 126 | 21.80% |
| 2007 | 376 | 18.67% | 254 | 17.74% | 122 | 21.11% |
| 2008 | 411 | 20.41% | 308 | 21.51% | 103 | 17.82% |
| 2009 | 275 | 13.65% | 212 | 14.80% | 62 | 10.73% |
| 2010 | 245 | 12.16% | 176 | 12.29% | 69 | 11.94% |
| 2011 | 72 | 3.57% | 46 | 3.21% | 25 | 4.33% |
| Missing |
3
(0.15%) |
– |
1
(0.07%) |
– |
2
(0.34%) |
– |
| Total | 2017 | 100% | 1433 | 100% | 580 | 100% |
| dates (year or date__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.32 (1.83) | 2007.31 (1.84) | 2007.33 (1.81) | |||
| 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 | 1 | 0.05% | 1 | 0.07% | 0 | 0.00% |
| 2000 | 2 | 0.10% | 2 | 0.14% | 0 | 0.00% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 6 | 0.30% | 5 | 0.35% | 1 | 0.17% |
| 2003 | 23 | 1.14% | 14 | 0.98% | 9 | 1.53% |
| 2004 | 76 | 3.75% | 61 | 4.26% | 15 | 2.55% |
| 2005 | 224 | 11.06% | 163 | 11.38% | 61 | 10.36% |
| 2006 | 376 | 18.57% | 248 | 17.32% | 126 | 21.39% |
| 2007 | 356 | 17.58% | 242 | 16.90% | 114 | 19.35% |
| 2008 | 407 | 20.10% | 301 | 21.02% | 106 | 18.00% |
| 2009 | 283 | 13.98% | 213 | 14.87% | 70 | 11.88% |
| 2010 | 218 | 10.77% | 151 | 10.54% | 66 | 11.21% |
| 2011 | 53 | 2.62% | 31 | 2.16% | 21 | 3.57% |
| Missing |
8
(0.39%) |
– |
6
(0.42%) |
– |
2
(0.34%) |
– |
| Total | 2033 | 100% | 1438 | 100% | 591 | 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.