Year per 1,000 female adults 1960 366.269 1961 360.684 1962 354.806 1963 348.558 1964 341.963 1965 335.149 1966 327.556 1967 319.896 1968 312.711 1969 305.688 1970 298.603 1971 292.333 1972 288.678 1973 282.749 1974 279.56 1975 277.147 1976 275.337 1977 284.871 1978 272.554 1979 270.714 1980 268.564 1981 266.415 1982 264.181 1983 261.379 1984 258.536 1985 255.029 1986 250.73 1987 246.06 1988 240.797 1989 235.415 1990 230.113 1991 224.61 1992 219.626 1993 215.351 1994 211.489 1995 208.297 1996 205.405 1997 202.421 1998 199.533 1999 196.421 2000 193.611 2001 191.192 2002 189.363 2003 188.222 2004 187.86 2005 188.108 2006 188.839 2007 189.446 2008 189.619 2009 188.941 2010 187.819 2011 186.069 2012 184.268 2013 182.131 2014 179.853 2015 177.336 2016 174.04 2017 170.802 2018 167.84 2019 165.046 2020 162.302 2021 159.745 2022 159.951