Year	male births per female births
1960	1.0580746865184871
1961	1.0579788933708192
1962	1.0583480767910367
1963	1.0585570109630338
1964	1.0585917819975454
1965	1.0585632920229364
1966	1.0579931002250382
1967	1.0581352593609663
1968	1.057132086409751
1969	1.0571088598823815
1970	1.0569132633741856
1971	1.057088049283248
1972	1.0575944214662092
1973	1.057355569404857
1974	1.0562972540915545
1975	1.056744777375805
1976	1.0573079024305758
1977	1.0571231426938696
1978	1.0582886157819564
1979	1.0579977870937276
1980	1.057884602859961
1981	1.0579790694390898
1982	1.059085978460846
1983	1.0595122100364354
1984	1.060417261762211
1985	1.0601447370897015
1986	1.060543122711106
1987	1.0616891517903724
1988	1.0616265723653384
1989	1.0616342373785688
1990	1.0624002502718028
1991	1.0622426530120854
1992	1.0623743859397958
1993	1.0631136209957637
1994	1.064310682197377
1995	1.0653492632254595
1996	1.0658149899667015
1997	1.0664318775003803
1998	1.0679099616026673
1999	1.0695324768618526
2000	1.0698219422847148
2001	1.0683831529478949
2002	1.068451043263417
2003	1.0677371965610587
2004	1.067603283593031
2005	1.067434650530109
2006	1.0664989826945404
2007	1.0669467344271635
2008	1.0681134640518437
2009	1.068704189701476
2010	1.068966420981157
2011	1.0693253366196043
2012	1.0691357366285936
2013	1.0690797303244721
2014	1.0689449551291137
2015	1.0690956340609594
2016	1.0687845269475686
2017	1.0679137246635788
2018	1.0681041292682494
2019	1.0677883237029808
2020	1.0667764420788866
2021	1.0659723910026986
2022	1.065749956909623