id	keyword
cpos-88	fertility
cpos-88	childbearing
cpos-88	period fertility
cpos-88	tpfr
cpos-88	women
cpos-88	postponement
cpos-88	age
cpos-88	recuperation
cpos-88	cohort
cpos-88	fertility rates
cpos-88	trends
cpos-88	low
cpos-88	births
cpos-88	cohort fertility
cpos-88	countries
cpos-88	process
cpos-88	patterns
cpos-88	population