U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES
CDC
NCHS Data Brief ■ No. 209 ■ July 2015
In 2011–2013, 44% of female teenagers and 47% of male teenagers aged 15–19 had experienced sexual intercourse; the percentage has declined significantly, by 14% for female and 22% for male teenagers, over the past 25 years… [Read full study]