| (Live births to unmarried women per 1,000 in specified age group) | |||||||||||||||||||||||||||
| Age of mother | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total ages 15–44 | 29.4 | 29.5 | 30.0 | 30.3 | 31.0 | 32.8 | 34.2 | 36.0 | 38.5 | 41.6 | 43.8 | 45.0 | 44.9 | 44.8 | 46.2 | 44.3 | 43.8 | 42.9 | 43.3 | 43.3 | 44.1 | 43.8 | 43.7 | 44.9 | 46.1 | 47.5 | 50.6 |
| Age | |||||||||||||||||||||||||||
| Ages 15–17 | 20.6 | 20.9 | 21.5 | 22.0 | 21.9 | 22.4 | 22.8 | 24.5 | 26.4 | 28.7 | 29.6 | 30.8 | 30.2 | 30.3 | 31.7 | 30.1 | 28.5 | 27.7 | 26.5 | 25.0 | 23.9 | 22.0 | 20.8 | 20.3 | 20.1 | 19.7 | — |
| Ages 18–19 | 39.0 | 39.0 | 39.6 | 40.7 | 42.5 | 45.9 | 48.0 | 48.9 | 51.5 | 56.0 | 60.7 | 65.4 | 66.7 | 66.2 | 69.1 | 66.5 | 64.9 | 63.9 | 63.6 | 62.3 | 62.2 | 60.6 | 58.6 | 57.6 | 57.7 | 58.4 | — |
| Ages 20–24 | 40.9 | 41.1 | 41.5 | 41.8 | 43.0 | 46.5 | 49.3 | 52.6 | 56.0 | 61.2 | 65.1 | 67.8 | 67.9 | 68.5 | 70.9 | 68.7 | 68.9 | 68.9 | 70.4 | 70.8 | 72.2 | 71.3 | 70.5 | 71.2 | 72.5 | 74.9 | — |
| Ages 25–29 | 34.0 | 34.5 | 35.1 | 35.5 | 37.1 | 39.9 | 42.2 | 44.5 | 48.5 | 52.8 | 56.0 | 56.0 | 55.6 | 55.9 | 57.4 | 54.3 | 54.5 | 53.4 | 55.4 | 56.9 | 58.5 | 59.5 | 61.5 | 65.7 | 68.6 | 71.1 | — |
| Ages 30–34 | 21.1 | 20.8 | 21.9 | 22.4 | 23.3 | 25.2 | 27.2 | 29.6 | 32.0 | 34.9 | 37.6 | 37.9 | 37.6 | 38.0 | 39.6 | 38.9 | 40.2 | 37.9 | 38.1 | 38.1 | 39.3 | 40.4 | 40.8 | 44.0 | 47.0 | 50.0 | — |
| Ages 35–39 | 9.7 | 9.8 | 10.0 | 10.2 | 10.9 | 11.6 | 12.2 | 13.5 | 15.0 | 16.0 | 17.3 | 17.9 | 18.8 | 18.9 | 19.7 | 19.3 | 19.9 | 18.7 | 18.7 | 19.0 | 19.7 | 20.4 | 20.8 | 22.3 | 23.5 | 24.5 | — |
| Ages 40–44 | 2.6 | 2.6 | 2.7 | 2.6 | 2.5 | 2.5 | 2.7 | 2.9 | 3.2 | 3.4 | 3.6 | 3.8 | 4.1 | 4.4 | 4.7 | 4.7 | 4.8 | 4.6 | 4.6 | 4.6 | 5.0 | 5.3 | 5.4 | 5.8 | 6.0 | 6.2 | — |
| — Not available. | |||||||||||||||||||||||||||
| NOTE: 2006 data for the total, ages 15–44, are preliminary. 2006 data for specific age groups are not available. Births to unmarried women were somewhat underreported in Michigan and Texas during the years 1989–93; data since 1994 have been reported on a complete basis. | |||||||||||||||||||||||||||
| SOURCE: Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System. Hamilton, B.E., Martin, J.A., and Ventura, S.J. (2007). Births: Preliminary data for 2006. National Vital Statistics Reports, 56(7). Hyattsville, MD: National Center for Health Statistics. Martin, J.A., Hamilton, B.E., Sutton, P.D., Ventura, S.J., Menacker, F., Kirmeyer, S., and Munson, M.L. (2007). Births: Final data for 2005. National Vital Statistics Reports, 56(6). Hyattsville, MD: National Center for Health Statistics. Hamilton, B.E., Sutton, P.D., and Ventura, S.J. (2003). Revised birth and fertility rates for the 1990s: United States, and new rates for Hispanic populations, 2000 and 2001. National Vital Statistics Reports, 51(12). Hyattsville, MD: National Center for Health Statistics. Ventura, S.J. and Bachrach, C.A. (2000). Nonmarital childbearing in the United States, 1940–99. National Vital Statistics Reports, 48(16). Hyattsville, MD: National Center for Health Statistics. | |||||||||||||||||||||||||||
