Year	per 1,000 female adults
1960	125.334
1961	119.588
1962	123.813
1963	117.244
1964	111.788
1965	114.411
1966	110.199
1967	109.248
1968	111.503
1969	114.604
1970	112.834
1971	116.747
1972	114.636
1973	115.559
1974	116.469
1975	117.402
1976	122.337
1977	119.246
1978	123.538
1979	125.105
1980	129.805
1981	133.078
1982	128.418
1983	133.099
1984	131.661
1985	133.743
1986	132.191
1987	129.267
1988	126.984
1989	133.828
1990	132.677
1991	131.845
1992	136.774
1993	138.942
1994	132.948
1995	130.626
1996	120.735
1997	121.505
1998	121.911
1999	121.101
2000	114.498
2001	110.866
2002	110.102
2003	110.787
2004	107.639
2005	107.4
2006	103.721
2007	106.415
2008	100.347
2009	98.903
2010	94.911
2011	92.995
2012	89.303
2013	85.688
2014	83.854
2015	85.926
2016	79.709
2017	80.586
2018	77.647
2019	75.172
2020	78.363