The birth rate for married women (97.0 per 1,000) was more than three times that for unmarried women (29.4) in 1980.
From 1980 to the mid-1990s, the birth rate among married women generally declined, whereas the rate for unmarried women generally increased.
Both rates stabilized in the mid-1990s and then increased until 2007–2008.
The birth rate among unmarried women declined from 51.8 in 2007 and 2008 to 44.0 in 2014.
The birth rate for married women dropped 5% during 2007–2010 but increased to 88.7 in 2014.
[Hamilton B, Martin J, Osterman M, Curtin S. Births: preliminary data for 2014. Natl Vital Stat Rep 2015;64(6). Available at http://www.cdc.gov/nchs/data/nvsr/nvsr64/nvsr64_06.pdf Adobe PDF file. Sally C. Curtin, MA.
MMWR Morb Mortal Wkly Rep 2015;64:728, http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6426a7.htm?s_cid=mm6426a7_e ]
QuickStats: Annual Birth Rates,* by Marital Status — National Vital Statistics System, United States, 1980–2014†
10 July 2015 MMWR Weekly
July 10, 2015 / 64(26);728