id	keyword
cpos-81	fertility
cpos-81	germany
cpos-81	austria
cpos-81	women
cpos-81	switzerland
cpos-81	period
cpos-81	countries
cpos-81	data
cpos-81	rates
cpos-81	population
cpos-81	tfr
cpos-81	europe
cpos-81	eastern
cpos-81	family
cpos-81	low
cpos-81	western
cpos-81	fertility rates
cpos-81	cohort
cpos-81	level
cpos-81	childlessness
cpos-81	eastern germany
cpos-81	children
cpos-81	share
cpos-81	doi
cpos-81	birth
cpos-81	kreyenfeld