Year	per 1,000 female adults
1960	115.166
1961	109.188
1962	111.685
1963	112.453
1964	107.276
1965	108.863
1966	105.889
1967	105.465
1968	104.266
1969	106.248
1970	101.134
1971	101.064
1972	100.361
1973	97.165
1974	95.616
1975	95.071
1976	92.711
1977	88.738
1978	88.002
1979	86.13
1980	84.922
1981	82.434
1982	80.834
1983	80.978
1984	78
1985	76.688
1986	75.077
1987	72.87
1988	72.027
1989	70.859
1990	68.981
1991	68.2
1992	67.617
1993	68.135
1994	66.538
1995	65.932
1996	65.4
1997	63.368
1998	62.736
1999	62.113
2000	60.936
2001	60.998
2002	60.634
2003	60.006
2004	57.921
2005	56.754
2006	56.165
2007	54.815
2008	55.022
2009	55.372
2010	53.661
2011	52.563
2012	51.592
2013	50.507
2014	49.309
2015	49.377
2016	48.309
2017	48.266
2018	48.216
2019	47.023
2020	46.883
2021	46.098