The most recent 2005 survey on sexual behavior of youth between the
ages of 15 and 19 shows that 46.8% of high school students
had experienced coitus at least once. The percentages are somewhat
different by race and ethnicity: for blacks, 61% for female
and 75% for male teenagers; for Hispanics, 44% for
female and 58% for male teenagers; and for whites, 43% for
female and 42% for male teenagers. Predictably, the higher
the grade in school, the higher the percentage of students reporting
sexual intercourse, with 9th graders at 34.3%, 10th graders
at 42.8%, 11th graders at 51.4%, and 12th graders
at 63.1%.1