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.) | 2007.59 (1.47) | 2007.59 (1.46) | 2007.59 (1.50) | |||
| 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 | 1 | 0.02% | 1 | 0.04% | 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 | 1 | 0.02% | 1 | 0.04% | 0 | 0.00% |
| 2003 | 2 | 0.05% | 0 | 0.00% | 2 | 0.16% |
| 2004 | 2 | 0.05% | 1 | 0.04% | 1 | 0.08% |
| 2005 | 285 | 6.90% | 181 | 6.34% | 103 | 8.14% |
| 2006 | 623 | 15.08% | 434 | 15.19% | 189 | 14.93% |
| 2007 | 1232 | 29.83% | 866 | 30.31% | 365 | 28.83% |
| 2008 | 871 | 21.09% | 618 | 21.63% | 252 | 19.91% |
| 2009 | 597 | 14.46% | 413 | 14.46% | 183 | 14.45% |
| 2010 | 466 | 11.28% | 310 | 10.85% | 153 | 12.09% |
| 2011 | 50 | 1.21% | 32 | 1.12% | 18 | 1.42% |
| Missing |
1
(0.02%) |
– |
1
(0.03%) |
– |
0
(0.00%) |
– |
| Total | 4131 | 100% | 2858 | 100% | 1266 | 100% |
| dates (year or date__year) | ||||||
| All Rs | Female | Male | ||||
| Mean (Std. Dev.) | 2007.61 (1.75) | 2007.62 (1.66) | 2007.59 (1.94) | |||
| 1980 | 2 | 0.06% | 0 | 0.00% | 2 | 0.20% |
| 1981 | 1 | 0.03% | 1 | 0.04% | 0 | 0.00% |
| 1982 | 1 | 0.03% | 1 | 0.04% | 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 | 1 | 0.03% | 0 | 0.00% | 1 | 0.10% |
| 2001 | 0 | 0.00% | 0 | 0.00% | 0 | 0.00% |
| 2002 | 2 | 0.06% | 1 | 0.04% | 1 | 0.10% |
| 2003 | 3 | 0.09% | 3 | 0.13% | 0 | 0.00% |
| 2004 | 7 | 0.21% | 6 | 0.26% | 1 | 0.10% |
| 2005 | 205 | 6.15% | 144 | 6.18% | 59 | 5.94% |
| 2006 | 513 | 15.40% | 358 | 15.37% | 154 | 15.49% |
| 2007 | 944 | 28.33% | 649 | 27.87% | 294 | 29.58% |
| 2008 | 696 | 20.89% | 503 | 21.60% | 193 | 19.42% |
| 2009 | 498 | 14.95% | 354 | 15.20% | 142 | 14.29% |
| 2010 | 416 | 12.48% | 278 | 11.94% | 135 | 13.58% |
| 2011 | 43 | 1.29% | 31 | 1.33% | 12 | 1.21% |
| Missing |
42
(1.24%) |
– |
27
(1.15%) |
– |
15
(1.49%) |
– |
| Total | 3374 | 100% | 2356 | 100% | 1009 | 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.