Year	per 1,000 female adults
1960	130.63
1961	126.608
1962	128.623
1963	130.297
1964	129.095
1965	128.619
1966	128.744
1967	127.484
1968	130.822
1969	128.864
1970	128.466
1971	125.887
1972	124.305
1973	122.92
1974	117.149
1975	112.933
1976	110.078
1977	107.656
1978	105.872
1979	102.067
1980	102.561
1981	100.866
1982	97.53
1983	97.093
1984	96.122
1985	95.529
1986	94.575
1987	94.286
1988	94.402
1989	92.515
1990	90.868
1991	90.652
1992	88.984
1993	90.066
1994	89.515
1995	89.372
1996	87.123
1997	85.4
1998	83.564
1999	83.804
2000	83.359
2001	84.172
2002	83.72
2003	83.557
2004	81.47
2005	81.507
2006	80.928
2007	79.447
2008	78.705
2009	79.055
2010	77.159
2011	77.926
2012	77.717
2013	78.083
2014	79.372
2015	80.429
2016	82.097
2017	81.986
2018	80.593
2019	79.455
2020	92.267
2021	103.772