id	keyword
cpos-604	reproduction
cpos-604	fertility
cpos-604	education
cpos-604	mating
cpos-604	countries
cpos-604	rates
cpos-604	children
cpos-604	women
cpos-604	differences
cpos-604	breen
cpos-604	et al
cpos-604	mare
cpos-604	data
cpos-604	inequality
cpos-604	figure
cpos-604	cohorts
cpos-604	research
cpos-604	effect
cpos-604	attainment