Year	per 1,000 female adults
1960	95.025
1961	89.857
1962	87.693
1963	89.801
1964	88.741
1965	87.779
1966	84.087
1967	83.899
1968	85.522
1969	86.466
1970	83.746
1971	83.036
1972	81.466
1973	79.312
1974	79.481
1975	80.926
1976	79.924
1977	78.381
1978	75.24
1979	77.252
1980	76.394
1981	71.272
1982	71.707
1983	69.103
1984	67.905
1985	68.665
1986	66.886
1987	66.649
1988	68.555
1989	65.033
1990	65.697
1991	64.663
1992	62.516
1993	61.304
1994	61.572
1995	58.881
1996	58.808
1997	56.204
1998	55.904
1999	55.175
2000	56.208
2001	54.738
2002	53.316
2003	52.088
2004	50.547
2005	51.076
2006	49.434
2007	47.552
2008	47.389
2009	46.728
2010	43.121
2011	43.573
2012	43.703
2013	43.703
2014	42.586
2015	39.95
2016	39.668
2017	39.084
2018	38.431
2019	37.733
2020	36.66
2021	36.638
2022	35.781