Year	per 1,000 female adults
1960	108.368
1961	105.726
1962	106.582
1963	103.486
1964	105.656
1965	103.25
1966	102.499
1967	100.283
1968	108.566
1969	108.184
1970	110.102
1971	110.021
1972	105.987
1973	108.005
1974	107.64
1975	102.21
1976	102.424
1977	103.763
1978	108.83
1979	103.013
1980	103.234
1981	102.978
1982	99.431
1983	104.338
1984	99.925
1985	105.628
1986	103.36
1987	104.181
1988	100.156
1989	98.262
1990	103.701
1991	102.873
1992	96.559
1993	94.854
1994	89.293
1995	89.154
1996	84.457
1997	90.665
1998	86.746
1999	85.718
2000	79.515
2001	82.045
2002	78.837
2003	78.996
2004	78.956
2005	77.67
2006	76.255
2007	78.674
2008	73.17
2009	74.638
2010	68.805
2011	69.716
2012	66.95
2013	65.973
2014	63.291
2015	64.859
2016	62.901
2017	64.214
2018	63.115
2019	61.629