Almost all Americans have sex before marrying

最新研究成果表明：Almost all Americans have sex before marrying

Data from the 2002 survey indicate that by age 20, 77% of respondents
had had sex, 75% had had premarital sex, and 12% had married; by age
44, 95% of respondents (94% of women, 96% of men, and 97% of those who
had ever had sex) had had premarital sex. Even among those who abstained
until at least age 20, 81% had had premarital sex by age 44. Among cohorts
of women turning 15 between 1964 and 1993, at least 91% had had premarital
sex by age 30. Among those turning 15 between 1954 and 1963, 82% had had
premarital sex by age 30, and 88% had done so by age 44.

不知道中国的情况怎么样呢?