Men. • Only 2% of single men between the ages of 18 and 24 had sex 4 or more times per week, but 21% of married men did. • Just under half of married men between the ages of 25 and 49 had sex a few times per month to weekly. This was the highest rate in this age category. • Age was not necessarily a deterrent to sexual frequency. Jun 11, · However, another study, printed in The University of Chicago Press about 10 years ago, stated that married couples are having sex about seven times a Estimated Reading Time: 4 mins. May 20, · On average, most couples typically have sex once a week. However, younger couples are more likely to have sex more frequently and older couples tend to have sex less frequently. One study found people in their 20s have sex about 80 times a year while those in their 60s decline to an average of 20 times a year. 2Estimated Reading Time: 7 mins.