Year	per 1,000 female adults
1960	117.666
1961	112.397
1962	115.514
1963	112.615
1964	106.323
1965	105.565
1966	109.72
1967	113.036
1968	105.887
1969	107.901
1970	116.965
1971	109.518
1972	114.651
1973	116.7
1974	110.438
1975	111.271
1976	112.497
1977	116.738
1978	120.454
1979	123.061
1980	122.175
1981	124.131
1982	117.122
1983	119.03
1984	121.274
1985	120.334
1986	107.456
1987	108.819
1988	107.459
1989	117.133
1990	117.65
1991	117.189
1992	128.281
1993	149.215
1994	172.12
1995	165.86
1996	132.617
1997	126.957
1998	131.684
1999	130.444
2000	121.788
2001	124.283
2002	118.341
2003	121.841
2004	117.07
2005	116.971
2006	126.533
2007	118.268
2008	106.761
2009	102.465
2010	98.658
2011	94.852
2012	87.355
2013	93.69
2014	89.021
2015	85.92
2016	87.497
2017	85.367
2018	85.896
2019	84.503