Year per 1,000 female adults 1960 364.382 1961 349.24 1962 332.902 1963 327.262 1964 319.296 1965 312.323 1966 312.338 1967 305.305 1968 303.292 1969 298.577 1970 297.566 1971 320.096 1972 319.187 1973 343.798 1974 321.589 1975 346.976 1976 350.278 1977 351.271 1978 329.854 1979 333.398 1980 342.43 1981 346.145 1982 350.228 1983 354.673 1984 361.821 1985 357.532 1986 368.651 1987 375.089 1988 380.124 1989 395.344 1990 411.442 1991 427.476 1992 438.962 1993 456.779 1994 455.207 1995 453.343 1996 449.67 1997 449.004 1998 445.869 1999 440.216 2000 440.046 2001 440.85 2002 440.994 2003 447.131 2004 438.38 2005 414.15 2006 383.971 2007 374.543 2008 370.467 2009 357.963 2010 352.022 2011 336.068 2012 317.869 2013 297.19 2014 293.565 2015 280.116 2016 264.368 2017 262.371 2018 247.133 2019 243.695 2020 244.897 2021 242.689 2022 233.908