Final answer:
Divorce rates in the U.S. have declined from their peak in 1980, largely due to people marrying later and having higher levels of education which contribute to greater marital stability.
Step-by-step explanation:
Over the last few decades, divorce rates in the United States have seen significant changes. In the 1960s, divorce was much less common, with the rate being 9.1 per 1,000 married persons. This rate increased dramatically, peaking at 22.6 in 1980. Since then, there has been a steady decline in divorce rates, now comparable to those in 1970. The decrease in the rate of divorces can be linked to factors like marrying at an older age, higher levels of education, and overall reduced marriage rates. These factors contribute to greater marital stability and, by extension, may also influence increased open communication about sex and higher sexual satisfaction within marriages, supported by stronger family networks.