Fifteen percent said they first had sex before age 15.
One factor driving this change is that Americans – particularly men – are staying single longer. Marriage declined most among those with a high school diploma or less education. The number of Americans living with an unmarried partner reached about 18 million in 2016, up 29% since 2007.
Overall, 21% of participants said they had ever tried cocaine or other street drugs, and about 5% said they had done so in the past year.
The oldest participants -- those in their 50s -- were the least likely to report having used cocaine or other street drugs in the past year or at any time in their lives.
" June 22, 2007 -- The CDC today released its latest facts and figures on sex and drug use in the U. The report shows that only 4% of adults over 20 have never had sex, and more than 20% of adults aged 20-59 have ever tried cocaine or other street drugs.
Data came from more than 6,200 civilians aged 20-59 who took part in government health surveys conducted nationwide from 1999 to 2002.