Year	per 1,000 female adults
1960	109.843
1961	104.955
1962	109.121
1963	108.219
1964	106.876
1965	108.532
1966	107.567
1967	105.054
1968	106.533
1969	107.028
1970	105.605
1971	103.068
1972	102.407
1973	100.927
1974	99.508
1975	101.292
1976	98.744
1977	96.147
1978	96.154
1979	93.27
1980	90.931
1981	88.329
1982	88.539
1983	88.413
1984	83.768
1985	81.82
1986	82.06
1987	78.65
1988	76.679
1989	76.563
1990	75.087
1991	72.279
1992	73.418
1993	71.674
1994	73.275
1995	71.387
1996	70.658
1997	70.724
1998	70.916
1999	67.493
2000	68.703
2001	67.722
2002	66.905
2003	65.357
2004	62.807
2005	62.164
2006	61.11
2007	63.08
2008	61.634
2009	61.099
2010	59.3
2011	59.462
2012	57.054
2013	57.509
2014	53.263
2015	53.983
2016	51.297
2017	49.351
2018	49.315
2019	46.994
2020	47.78
2021	47.204
2022	46.94