Year	per 1,000 female adults
1960	121.741
1961	119.838
1962	120.805
1963	117.371
1964	113.447
1965	111.228
1966	109.637
1967	107.654
1968	105.597
1969	108.778
1970	104.322
1971	105.983
1972	100.888
1973	100.811
1974	99.437
1975	101.007
1976	102.119
1977	102.301
1978	103.079
1979	102.137
1980	105.415
1981	101.219
1982	101.346
1983	101.654
1984	102.946
1985	105.097
1986	103.4
1987	104.211
1988	101.142
1989	101.599
1990	101.619
1991	104.286
1992	100.851
1993	96.102
1994	95.228
1995	93.862
1996	91.437
1997	91.534
1998	89.252
1999	89.457
2000	86.921
2001	84.15
2002	81.427
2003	80.211
2004	79.424
2005	79.411
2006	79.208
2007	78.935
2008	76.953
2009	75.725
2010	71.02
2011	69.818
2012	69.056
2013	66.784
2014	64.372
2015	63.434
2016	61.842
2017	61.708
2018	61.565
2019	59.826