Number of unmarried adults, 1970:37.5 million
Number of unmarried adults, 1993:72.6 million
Average age at first marriage, for women, in 1960:21.3
Average age at first marriage, for women, in 1993:24.5
Average age at first marriage, for men, in 1960:22.8
Average age at first marriage, for men, in 1993: 26.5
Percent increase since 1970 in number of unmarried couples living together: 45
Percent of married couples in 1990 who lived their spouse before marriage: 39
Percent of adults in 1990 who by age 34 had cohabited with a partner: 45
Percent of previously cohabiting married couples who divorce within 10 years: 38
Percent of married couples previously living separately who divorce within 10 years: 27
Average married couple's estimate of their chance of divorce: 1 in 10
