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age (in Demographics)

Variable Summary Undergrad Freshman Sophomore Junior Senior
Sexually active students: Undergrad Freshman Sophomore Junior Senior
Casual-sexually active students: Undergrad Freshman Sophomore Junior Senior

students (age)
 All RsFemaleMale
Mean (Std. Dev.) 19.69 (1.23) 19.67 (1.23) 19.74 (1.22)
18 1684 19.66% 1214 20.85% 467 17.13%
19 2457 28.68% 1631 28.01% 820 30.08%
20 1954 22.81% 1313 22.55% 636 23.33%
21 1775 20.72% 1215 20.87% 555 20.36%
22 697 8.14% 449 7.71% 248 9.10%
23 0 0.00% 0 0.00% 0 0.00%
24 0 0.00% 0 0.00% 0 0.00%
25 0 0.00% 0 0.00% 0 0.00%
Missing 0
(0.00%)
0
(0.00%)
0
(0.00%)
Total 8567 100% 5822 100% 2726 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.