Estimated average ages to start with relationship, by sex: 1890 to the current
Estimated average ages to start with relationship, by sex: 1890 to the current U.S. Census Agency. 1986. Virility of American female: June 1985. Latest Populace Profile: Population Attributes. Collection P-20 , No. 406. Arizona, DC : You.S. Census Agency. Internet sites Release Big date: — . 2005b. Questionnaire cash and you will System Contribution ( …
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