Year	male births per female births
1960	1.0581553037324005
1961	1.0580778382959144
1962	1.0577530564444835
1963	1.0589653424273704
1964	1.0577311982770325
1965	1.0572241384021923
1966	1.0570006906369804
1967	1.05633367641511
1968	1.0553558469637236
1969	1.0556680988877183
1970	1.055730128776486
1971	1.0558784111877422
1972	1.055960562232205
1973	1.056184232095899
1974	1.055488553133478
1975	1.0566535975997404
1976	1.0568938042326557
1977	1.0551292439701574
1978	1.0556828719133728
1979	1.0557662843528064
1980	1.0546642293849484
1981	1.0553916902125748
1982	1.0563338085223388
1983	1.0561285667809583
1984	1.0573329475346038
1985	1.0569074347465948
1986	1.0565670179057542
1987	1.0588980978230464
1988	1.0585068395946529
1989	1.0596572457256166
1990	1.0598301208879335
1991	1.0606854971441413
1992	1.0606050786466792
1993	1.0611021088454486
1994	1.0616189525943442
1995	1.0623408044830074
1996	1.063849717551328
1997	1.064518812545888
1998	1.0655516190623167
1999	1.0670649019380996
2000	1.0673121343588317
2001	1.0662271449203262
2002	1.0659471204310351
2003	1.0654356368633366
2004	1.0649410704363396
2005	1.0643461119918205
2006	1.063736013405606
2007	1.0641371574271212
2008	1.0640137162951626
2009	1.0645082524544371
2010	1.0654652161667635
2011	1.0652888202068753
2012	1.0653034873641476
2013	1.0646918478841993
2014	1.065472018431614
2015	1.0652353071880807
2016	1.06475301370745
2017	1.0642633965954966
2018	1.0644583735419653
2019	1.064223692000458
2020	1.063700185453766
2021	1.06300308328137
2022	1.0630557401182945