Fertility in USA
Data sources
Most of the data on this page comes from the Human Fertility Database (website www.humanfertility.org) (data downloaded December 2013, last updated January 2013). The data collected by the Human Fertility Database is based on government data collection by the United States government. Details about the modalities of data collection are available here.
Data on period fertility
Data on total indicators only without breakdown by birth order
| Year | CBR (births per 1000 people per year) | CBR minus previous year's CBR | TFR (sum of all age-specific fertility rates), ballpark for replacement fertility is 2.1 | TFR minus previous year's TFR | TFR40 (sum of age-specific fertility rates up to the age of 40), almost equal to TFR because births above the age of 40 are rare | TFR40 minus previous year's TFR40 |
|---|---|---|---|---|---|---|
| 1933 | 16.57 | 2.012 | 1.911 | |||
| 1934 | 17.15 | 0.58 | 2.072 | 0.06 | 1.973 | 0.062 |
| 1935 | 16.93 | -0.22 | 2.038 | -0.034 | 1.944 | -0.029 |
| 1936 | 16.75 | -0.18 | 2.007 | -0.031 | 1.919 | -0.025 |
| 1937 | 17.09 | 0.34 | 2.038 | 0.031 | 1.955 | 0.036 |
| 1938 | 17.61 | 0.52 | 2.092 | 0.054 | 2.01 | 0.055 |
| 1939 | 17.3 | -0.31 | 2.05 | -0.042 | 1.974 | -0.036 |
| 1940 | 17.88 | 0.58 | 2.113 | 0.063 | 2.037 | 0.063 |
| 1941 (beginning of World War II) | 18.89 | 1.01 | 2.226 | 0.113 | 2.152 | 0.115 |
| 1942 | 20.99 | 2.1 | 2.465 | 0.239 | 2.392 | 0.24 |
| 1943 | 21.92 | 0.93 | 2.566 | 0.101 | 2.489 | 0.097 |
| 1944 | 20.99 | -0.93 | 2.439 | -0.127 | 2.359 | -0.13 |
| 1945 (end of World War II) | 20.33 | -0.66 | 2.38 | -0.059 | 2.297 | -0.062 |
| 1946 | 23.67 | 3.34 | 2.83 | 0.45 | 2.747 | 0.45 |
| 1947 | 25.82 | 2.15 | 3.161 | 0.331 | 3.077 | 0.33 |
| 1948 | 24.2 | -1.62 | 3.009 | -0.152 | 2.93 | -0.147 |
| 1949 | 23.94 | -0.26 | 3.022 | 0.013 | 2.945 | 0.015 |
| 1950 | 23.52 | -0.42 | 3.02 | -0.002 | 2.944 | -0.001 |
| 1951 | 24.45 | 0.93 | 3.203 | 0.183 | 3.124 | 0.18 |
| 1952 | 24.7 | 0.25 | 3.302 | 0.099 | 3.222 | 0.098 |
| 1953 | 24.65 | -0.05 | 3.372 | 0.07 | 3.292 | 0.07 |
| 1954 | 24.92 | 0.27 | 3.494 | 0.122 | 3.411 | 0.119 |
| 1955 | 24.64 | -0.28 | 3.538 | 0.044 | 3.456 | 0.045 |
| 1956 | 24.88 | 0.24 | 3.654 | 0.116 | 3.57 | 0.114 |
| 1957 | 24.97 | 0.09 | 3.738 | 0.084 | 3.654 | 0.084 |
| 1958 | 24.25 | -0.72 | 3.689 | -0.049 | 3.609 | -0.045 |
| 1959 | 23.96 | -0.29 | 3.689 | 0 | 3.609 | 0 |
| 1960 | 23.65 | -0.31 | 3.667 | -0.022 | 3.587 | -0.022 |
| 1961 | 23.33 | -0.32 | 3.626 | -0.041 | 3.545 | -0.042 |
| 1962 | 22.43 | -0.9 | 3.481 | -0.145 | 3.403 | -0.142 |
| 1963 | 21.74 | -0.69 | 3.354 | -0.127 | 3.28 | -0.123 |
| 1964 | 21.07 | -0.67 | 3.222 | -0.132 | 3.149 | -0.131 |
| 1965 | 19.43 | -1.64 | 2.926 | -0.296 | 2.858 | -0.291 |
| 1966 | 18.44 | -0.99 | 2.714 | -0.212 | 2.651 | -0.207 |
| 1967 | 17.83 | -0.61 | 2.564 | -0.15 | 2.507 | -0.144 |
| 1968 | 17.56 | -0.27 | 2.467 | -0.097 | 2.416 | -0.091 |
| 1969 | 17.86 | 0.3 | 2.457 | -0.01 | 2.41 | -0.006 |
| 1970 | 18.29 | 0.43 | 2.461 | 0.004 | 2.417 | 0.007 |
| 1971 | 17.2 | -1.09 | 2.268 | -0.193 | 2.23 | -0.187 |
| 1972 | 15.58 | -1.62 | 2.008 | -0.26 | 1.975 | -0.255 |
| 1973 | 14.85 | -0.73 | 1.871 | -0.137 | 1.842 | -0.133 |
| 1974 | 14.82 | -0.03 | 1.827 | -0.044 | 1.802 | -0.04 |
| 1975 | 14.6 | -0.22 | 1.769 | -0.058 | 1.744 | -0.058 |
| 1976 | 14.57 | -0.03 | 1.739 | -0.03 | 1.716 | -0.028 |
| 1977 | 15.14 | 0.57 | 1.783 | 0.044 | 1.761 | 0.045 |
| 1978 | 15.01 | -0.13 | 1.747 | -0.036 | 1.727 | -0.034 |
| 1979 | 15.57 | 0.56 | 1.795 | 0.048 | 1.774 | 0.047 |
| 1980 | 15.91 | 0.34 | 1.821 | 0.026 | 1.801 | 0.027 |
| 1981 | 15.82 | -0.09 | 1.805 | -0.016 | 1.785 | -0.016 |
| 1982 | 15.89 | 0.07 | 1.814 | 0.009 | 1.794 | 0.009 |
| 1983 | 15.57 | -0.32 | 1.783 | -0.031 | 1.764 | -0.03 |
| 1984 | 15.56 | -0.01 | 1.792 | 0.009 | 1.773 | 0.009 |
| 1985 | 15.81 | 0.25 | 1.835 | 0.043 | 1.815 | 0.042 |
| 1986 | 15.65 | -0.16 | 1.835 | 0 | 1.814 | -0.001 |
| 1987 | 15.73 | 0.08 | 1.865 | 0.03 | 1.843 | 0.029 |
| 1988 | 15.99 | 0.26 | 1.922 | 0.057 | 1.898 | 0.055 |
| 1989 | 16.37 | 0.38 | 1.999 | 0.077 | 1.974 | 0.076 |
| 1990 | 16.66 | 0.29 | 2.069 | 0.07 | 2.042 | 0.068 |
| 1991 | 16.26 | -0.4 | 2.058 | -0.011 | 2.029 | -0.013 |
| 1992 | 15.85 | -0.41 | 2.043 | -0.015 | 2.013 | -0.016 |
| 1993 | 15.4 | -0.45 | 2.019 | -0.024 | 1.988 | -0.025 |
| 1994 | 15.03 | -0.37 | 2.003 | -0.016 | 1.971 | -0.017 |
| 1995 | 14.66 | -0.37 | 1.982 | -0.021 | 1.948 | -0.023 |
| 1996 | 14.46 | -0.2 | 1.98 | -0.002 | 1.945 | -0.003 |
| 1997 | 14.25 | -0.21 | 1.974 | -0.006 | 1.938 | -0.007 |
| 1998 | 14.3 | 0.05 | 2.003 | 0.029 | 1.965 | 0.027 |
| 1999 | 14.21 | -0.09 | 2.009 | 0.006 | 1.97 | 0.005 |
| 2000 | 14.41 | 0.2 | 2.054 | 0.045 | 2.012 | 0.042 |
| 2001 | 14.15 | -0.26 | 2.031 | -0.023 | 1.989 | -0.023 |
| 2002 | 14 | -0.15 | 2.024 | -0.007 | 1.981 | -0.008 |
| 2003 | 14.11 | 0.11 | 2.053 | 0.029 | 2.007 | 0.026 |
| 2004 | 14.06 | -0.05 | 2.058 | 0.005 | 2.01 | 0.003 |
| 2005 | 14.01 | -0.05 | 2.061 | 0.003 | 2.012 | 0.002 |
| 2006 | 14.3 | 0.29 | 2.112 | 0.051 | 2.061 | 0.049 |
| 2007 | 14.33 | 0.03 | 2.122 | 0.01 | 2.07 | 0.009 |
| 2008 | 13.97 | -0.36 | 2.074 | -0.048 | 2.02 | -0.05 |
| 2009 | 13.47 | -0.5 | 2.002 | -0.072 | 1.948 | -0.072 |
| 2010 | 12.94 | -0.53 | 1.928 | -0.074 | 1.874 | -0.074 |
| Mean | 18.0137179487 | -0.0471428571 | 2.3858333333 | -0.0010909091 | 2.3314102564 | -0.0004805195 |
| Median | 16.615 | -0.13 | 2.0595 | -0.002 | 2.012 | -0.001 |
| Standard deviation | 3.8378718091 | 0.7508203534 | 0.6196736765 | 0.1109433452 | 0.6026563156 | 0.1096561144 |
| Slope for best linear fit (using linear regression) | -0.1170643281 | -0.0066822651 | -0.0128025519 | -0.0008526999 | -0.0119700806 | -0.000900021 |
| Multiplier for best log-linear fit (using linear regression on the logarithm) | 0.993534563 | 0.9949225462 | 0.9951862764 |