Editing Kinsey Reports (section)

===Marital coitus===
The average frequency of marital sex reported by women was 2.8 times a week in the late teens, 2.2 times a week by age 30, and 1.0 times a week by age 50.<ref>Sexual Behavior in the Human Female, p. 348-349, 351.</ref> Kinsey estimated that approximately 50% of all married males had [[extramarital sex]] at some time during their married lives.<ref>Sexual Behavior in the Human Male, pp. 585, 587</ref> Among the sample, 26% of females had extramarital sex by their forties. Between 1 in 6 and 1 in 10 females from age 26 to 50 were engaged in extramarital sex.<ref>Sexual Behavior in the Human Female, p. 416</ref> However, Kinsey classified couples who have lived together for at least a year as "married", inflating the statistics for extra-marital sex.<ref name="Kinsey, Alfred p. 53">Kinsey, Alfred. ''Sexual Behavior in the Human Female'', p. 53.</ref><ref name="Jones, James H. 1997">Jones, James H. (1997). Alfred C. Kinsey: A Public/Private Life. New York: Norton.</ref>