Year per 1,000 female adults 1960 402.02 1961 397.647 1962 394.408 1963 390.07 1964 385.562 1965 381.512 1966 377.68 1967 373.829 1968 373.287 1969 370.89 1970 367.961 1971 364.415 1972 359.681 1973 356.818 1974 351.879 1975 347.529 1976 342.412 1977 338.381 1978 334.171 1979 331.237 1980 330.799 1981 330.773 1982 331.727 1983 332.035 1984 335.731 1985 340.681 1986 348.007 1987 349.622 1988 354.424 1989 360.098 1990 363.213 1991 374.016 1992 375.806 1993 380.894 1994 393.476 1995 397.218 1996 394.081 1997 398.075 1998 405.383 1999 405.293 2000 393.718 2001 388.347 2002 384.129 2003 379.245 2004 375.896 2005 371.446 2006 357.789 2007 341.534 2008 325.398 2009 310.629 2010 297.065 2011 285.973 2012 275.987 2013 265.3 2014 267.786 2015 258.226 2016 240.242 2017 240.12 2018 219.265 2019 217.502 2020 228.946 2021 229.627 2022 226.235