Year	per 1,000 female adults
1960	105.187
1961	95.815
1962	99.145
1963	85.987
1964	92.662
1965	99.604
1966	104.059
1967	84.87
1968	104.117
1969	103.427
1970	73.025
1971	104.823
1972	112.378
1973	85.482
1974	101.021
1975	79.86
1976	69.569
1977	81.157
1978	80.197
1979	85.548
1980	71.116
1981	58.067
1982	79.981
1983	64.685
1984	61.825
1985	56.729
1986	67.599
1987	73.028
1988	70.574
1989	64.117
1990	78.001
1991	67.9
1992	60.375
1993	64.043
1994	68.479
1995	71.737
1996	58.112
1997	63.985
1998	55.6
1999	58.701
2000	59.117
2001	54.194
2002	54.311
2003	50.724
2004	50.672
2005	48.853
2006	53.083
2007	45.538
2008	39.741
2009	39.946
2010	36.334
2011	42.297
2012	34.35
2013	38.876
2014	42.085
2015	43.185
2016	38.181
2017	32.503
2018	40.902
2019	45.372
2020	42.484
2021	36.679