Year	male births per female births
1960	1.067774866782161
1961	1.0674545406296445
1962	1.0662568716060346
1963	1.0648058642124894
1964	1.064904374151443
1965	1.0636224130937986
1966	1.0633470424036064
1967	1.0600051860152664
1968	1.0590491800361537
1969	1.061029347436213
1970	1.0611841144376248
1971	1.0603729252023486
1972	1.0615098974281665
1973	1.0605692130312723
1974	1.0625267001206253
1975	1.0608869476434422
1976	1.0609060527488914
1977	1.0587603760478481
1978	1.0573842024718247
1979	1.0590981048083097
1980	1.0562727475239997
1981	1.0562119223425928
1982	1.056804192788282
1983	1.0564540512714249
1984	1.056259262294508
1985	1.0549619281075557
1986	1.0540039730041062
1987	1.0551738522817007
1988	1.0542650604843093
1989	1.055627566136736
1990	1.0547933217652605
1991	1.0571581840168927
1992	1.0563513709580405
1993	1.055949118650621
1994	1.0549696046745043
1995	1.0576926665941513
1996	1.059859083658664
1997	1.0619789596182851
1998	1.0599417816470196
1999	1.0600758089926872
2000	1.0610514866143042
2001	1.0609406755176252
2002	1.0603054568671981
2003	1.060318061737759
2004	1.0602075953137775
2005	1.0588197133863981
2006	1.0577089512450681
2007	1.0560709148945406
2008	1.0565239895839362
2009	1.057369410128753
2010	1.0611890859193613
2011	1.0592882342223549
2012	1.0588176658035415
2013	1.0578617113877384
2014	1.0580120922493492
2015	1.0581212871279817
2016	1.0564142857816745
2017	1.0560984638546058
2018	1.0567554525023022
2019	1.0562072997496978
2020	1.0568757084579519
2021	1.0569811226448822
2022	1.0576022799064753