Year	per 1,000 female adults
1960	127.148
1961	142.571
1962	122.747
1963	136.024
1964	123.001
1965	122.875
1966	123.929
1967	120.715
1968	104.397
1969	112.311
1970	102.78
1971	107.269
1972	93.713
1973	100.708
1974	96.171
1975	95.679
1976	101.093
1977	94.943
1978	91.826
1979	89.201
1980	85.408
1981	90.242
1982	105.964
1983	91.381
1984	85.403
1985	74.748
1986	77.657
1987	71.526
1988	70.017
1989	64.393
1990	58.515
1991	65.053
1992	65.514
1993	54.962
1994	61.027
1995	55.077
1996	55.422
1997	53.501
1998	50.635
1999	52.867
2000	50.36
2001	47.34
2002	50.708
2003	49.501
2004	49.702
2005	47.021
2006	46.368
2007	44.983
2008	45.491
2009	42.961
2010	39.006
2011	38.34
2012	38.033
2013	33.37
2014	31.138
2015	29.26
2016	28.953
2017	25.778
2018	25.975
2019	26.21
2020	23.879
2021	22.098
2022	27.791