Year per 1,000 female adults 1960 332.747 1961 325.485 1962 322.134 1963 318.642 1964 315.492 1965 313.116 1966 310.94 1967 309.163 1968 304.851 1969 302.452 1970 297.606 1971 280.99 1972 266.229 1973 262.348 1974 277.747 1975 288.068 1976 289.168 1977 277.879 1978 272.622 1979 266.326 1980 258.42 1981 191.384 1982 206.39 1983 215.222 1984 225.226 1985 233.818 1986 249.431 1987 253.955 1988 262.434 1989 272.409 1990 274.441 1991 282.449 1992 292.116 1993 307.541 1994 316.268 1995 337.032 1996 351.544 1997 366.367 1998 383.368 1999 395.804 2000 414.02 2001 422.751 2002 419.941 2003 413.765 2004 403.064 2005 385.437 2006 367.138 2007 360.248 2008 344.365 2009 328.442 2010 329.774 2011 318.898 2012 320.564 2013 321.812 2014 306.914 2015 306.191 2016 308.292 2017 292.693 2018 291.343 2019 291.473 2020 298.533 2021 310.873 2022 301.538