Year per 1,000 female adults 1960 437.01 1961 434.102 1962 432.35 1963 427.118 1964 423.364 1965 419.35 1966 418.091 1967 412.08 1968 409.617 1969 406.313 1970 402.284 1971 397.63 1972 392.47 1973 390.15 1974 382.445 1975 380.499 1976 375.481 1977 376.238 1978 376.949 1979 365.476 1980 360.468 1981 360.687 1982 350.194 1983 347.659 1984 343.1 1985 336.216 1986 333.489 1987 326.915 1988 323.963 1989 317.545 1990 309.985 1991 297.745 1992 286.928 1993 276.396 1994 266.369 1995 257.337 1996 254.094 1997 257.767 1998 254.861 1999 254.29 2000 261.28 2001 265.398 2002 272.421 2003 272.638 2004 269.941 2005 267.613 2006 263.041 2007 266.381 2008 261.012 2009 255.692 2010 258.996 2011 247.661 2012 237.485 2013 244.712 2014 241.137 2015 242 2016 233.36 2017 235.301 2018 237.986 2019 225.132 2020 240.112 2021 254.144 2022 243.833