Year per 1,000 female adults 1960 447.875 1961 416.744 1962 411.025 1963 404.745 1964 398.118 1965 391.271 1966 384.612 1967 377.556 1968 371.041 1969 365.093 1970 359.726 1971 355.181 1972 350.806 1973 346.641 1974 341.903 1975 336.554 1976 329.818 1977 321.808 1978 313.215 1979 303.854 1980 293.792 1981 284.558 1982 275.114 1983 266.217 1984 257.857 1985 248.95 1986 240.631 1987 233.308 1988 226.509 1989 220.37 1990 214.705 1991 209.493 1992 204.802 1993 199.473 1994 194.427 1995 189.921 1996 185.2 1997 181.072 1998 176.737 1999 172.04 2000 167.752 2001 163.755 2002 160.092 2003 156.301 2004 153.488 2005 147.494 2006 142.189 2007 137.055 2008 132.426 2009 128.175 2010 124.389 2011 118.679 2012 113.437 2013 108.787 2014 104.592 2015 100.723 2016 96.866 2017 92.365 2018 88.583 2019 85.393 2020 84.929 2021 83.996 2022 80.565