While it's not usually a good idea to compare your sex life to what sex statistics say about others, it can be interesting to look at how often other couples have sex. For example, sometimes people believe they're having less sex than their peers, but scientific study results might prove them wrong. Other stats can offer insight on married couples' sexual satisfaction and even relationship satisfaction and how it's related to sex. Americans in their 20s whether partnered or not have sex about 80 times a year, or more than once per week, says a study. While the frequency of sex is associated with happiness, partnered couples who have sex more than once a week are no happier than those having sex weekly, according to an analysis of three research studies of over 30, people. Having sex once a week might be the ideal, according to science.

Scientists have crunched the numbers on how often wedded couples get busy in the sheets — and found out what they're into. How do you measure up? Do the deed as often as you go to Sunday brunch, and you're normal as bacon and eggs. If you want the math for an entire year, married couples do it an average of times, according to multiple studies , just slightly more than unmarried people.

In the movie Far From Heaven, four young housewives discuss their sex lives over lunchtime daiquiris. The boldest of the group coaxes the others to reveal how often their husbands want to make love. Can you imagine? The movie is set in the '50s and the clothing and interior decorating reflect the era, as does the girlish modesty of the confessions.