Cohort Fertility Bwletin ystadegols
Childbearing by the year of birth of mothers including trends in average family size, the age at which women give birth, and childlessness.
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Cohort Fertility : 2012
Cyhoeddwyd: 5 December 2013
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Cohort Fertility : 2011
Cyhoeddwyd: 7 March 2013
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Cohort Fertility : 2010
Cyhoeddwyd: 16 December 2011