Year per 1,000 female adults 1960 156.718 1961 153.075 1962 151.898 1963 144.055 1964 137.607 1965 132.229 1966 129.761 1967 128.811 1968 125.058 1969 123.076 1970 116.931 1971 110.163 1972 106.477 1973 103.12 1974 100.378 1975 99.373 1976 98.655 1977 99.563 1978 96.723 1979 93.992 1980 87.495 1981 82.089 1982 80.419 1983 79.245 1984 77.375 1985 73.761 1986 71.28 1987 69 1988 67.881 1989 66.833 1990 64.278 1991 62.959 1992 60.36 1993 57.547 1994 54.921 1995 52.156 1996 50.645 1997 49.195 1998 47.487 1999 46.486 2000 44.646 2001 42.934 2002 42.371 2003 43.766 2004 42.12 2005 40.983 2006 39.834 2007 38.947 2008 38.441 2009 37.755 2010 35.824 2011 34.655 2012 33.109 2013 31.857 2014 30.664 2015 29.622 2016 28.052 2017 26.29 2018 24.813 2019 25.018 2020 24.116 2021 23.331 2022 27.912