Year per 1,000 female adults 1960 407 1961 406.064 1962 404.865 1963 400.166 1964 400.044 1965 396.615 1966 396.065 1967 391.921 1968 384.664 1969 384.617 1970 381.488 1971 378.942 1972 373.879 1973 374.173 1974 373.097 1975 366.707 1976 363.283 1977 358.764 1978 353.599 1979 348.835 1980 344.397 1981 341.443 1982 337.44 1983 333.322 1984 330.072 1985 324.031 1986 324.541 1987 321.983 1988 327.014 1989 330.532 1990 336.576 1991 330.55 1992 319.573 1993 315.701 1994 319.78 1995 316.418 1996 313.56 1997 305.47 1998 304.816 1999 307.809 2000 314.098 2001 316.399 2002 313.934 2003 312.464 2004 308.31 2005 302.281 2006 297.089 2007 290.451 2008 283.924 2009 282.322 2010 276.306 2011 274.326 2012 266.057 2013 263.73 2014 260.901 2015 261.918 2016 258.406 2017 251.715 2018 252.559 2019 246.335 2020 253.585 2021 263.795 2022 262.302