Mean Age of Women at Birth of First Child by Country and YearCanada, 2000: 29.9http://www.unece.org/stats/profiles2009/canada.pdfUS, 2005: 25.2 http://www.unece.org/stats/profiles2009/united_states.pdfRussian Federation, 1995: 22.6 http://www.unece.org/stats/profiles2009/russian_federation.pdfисточник http://213.174.196.125/pxweb/dialog/varval.asp?ma=04_GEFHAge1stChild_r&path=../database/STAT/30-GE/02-Families_households/&lang=1&ti=Mean+Age+of+Women+at+Birth+of+First+Child+by+Country+and+Year