Year per 1,000 female adults 1960 163.344 1961 161.852 1962 157.202 1963 152.481 1964 157.307 1965 151.731 1966 147.7 1967 148.856 1968 144.849 1969 138.849 1970 137.641 1971 135.004 1972 133.087 1973 131.505 1974 129.601 1975 126.217 1976 127.657 1977 123.354 1978 123.761 1979 118.974 1980 123.22 1981 115.885 1982 114.755 1983 113.208 1984 115.124 1985 109.65 1986 108.337 1987 111.673 1988 106.9 1989 106.536 1990 105.036 1991 105.641 1992 107.837 1993 107.537 1994 105.062 1995 99.635 1996 98.351 1997 99.935 1998 103.06 1999 101.602 2000 100.073 2001 99.102 2002 95.332 2003 94.016 2004 94.046 2005 88.19 2006 86.478 2007 89.293 2008 90.28 2009 85.649 2010 85.076 2011 83.103 2012 80.636 2013 78.977 2014 75.109 2015 73.545 2016 71.338 2017 72.781 2018 73.067 2019 70.681 2020 71.825 2021 83.798 2022 85.587