From 2010 to 2014, the average American adult had sex nine fewer times per year than Americans did from 2000 to 2004, the researchers found. That drop in frequency was even steeper for married couples who live together; they had sex 16 fewer times a year....
But despite these declines in hanky panky, our lives are far from sexless. The average adult enjoys sex 54 times a year, or a little more than once a week, Twenge's data show. While married couples under the same roof don’t fool around quite as much, they still have sex about 51 times each year.
http://time.com/4692326/how-much-sex-is-healthy-in-a-relationship/
But despite these declines in hanky panky, our lives are far from sexless. The average adult enjoys sex 54 times a year, or a little more than once a week, Twenge's data show. While married couples under the same roof don’t fool around quite as much, they still have sex about 51 times each year.
http://time.com/4692326/how-much-sex-is-healthy-in-a-relationship/