What percentage of people have kids?

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Tags

1. #children
2. #tracking
3. #according
4. #since
5. #bureau
6. #started
7. #percentage
8. #population
9. #survey
10. #census
11. #percent
12. #between
13. #women
14. #current
15. #never
16. #highest
17. #represents
18. #childless