Age Births Down 17.5 13555 16 18.5 13675 15 19.5 18752 16 20.5 22005 22 21.5 23796 16 22.5 24667 12 23.5 24807 17 24.5 23986 22 25.5 22860 15 26.5 21450 15 27.5 19202 27 28.5 17450 14 29.5 15685 9 30.5 13954 12 31.5 11987 12 32.5 10983 18 33.5 09825 13 34.5 08483 11 35.5 07448 23 36.5 06628 13 37.5 05780 17 38.5 04834 15 39.5 03961 30 40.5 02952 31 41.5 02276 33 42.5 01589 20 43.5 01018 16 44.5 00596 22 45.5 00327 11 46.5 00249 7