Year	male births per female births
1960	1.0521856817438955
1961	1.051897267364962
1962	1.0534123209475683
1963	1.0539388916875478
1964	1.053669041469464
1965	1.0536173145658538
1966	1.05362406413408
1967	1.0537359983086076
1968	1.053771871952278
1969	1.0538713941742806
1970	1.0543927237847064
1971	1.0542019127153257
1972	1.054507544168179
1973	1.054476177377316
1974	1.0548272462796668
1975	1.0551692757554956
1976	1.0558231504577873
1977	1.0558133556270088
1978	1.0560292531031505
1979	1.05616178547683
1980	1.0565879786783523
1981	1.057497363003164
1982	1.0577311988045213
1983	1.0580523816949772
1984	1.0589069568003182
1985	1.0597533807931785
1986	1.0611862078075394
1987	1.0633389163286284
1988	1.0649469329239758
1989	1.0659462389967354
1990	1.067812452676712
1991	1.069525050028852
1992	1.0706597217988931
1993	1.07284373815176
1994	1.074940756456347
1995	1.0765604583538548
1996	1.0775788441284375
1997	1.0785284753828155
1998	1.078743568143336
1999	1.0783578483901477
2000	1.0786724306481479
2001	1.0777033922622794
2002	1.0766120601989628
2003	1.076334827255462
2004	1.0763635469833284
2005	1.0764226834136963
2006	1.075402542371154
2007	1.0751200953932476
2008	1.0747272135257802
2009	1.0744107697234866
2010	1.0737617009499076
2011	1.0742205604386035
2012	1.0739726878872053
2013	1.071544693373347
2014	1.0714362827263364
2015	1.0688553282095896
2016	1.0691305243241254
2017	1.0671491842455605
2018	1.0645847130442496
2019	1.0630264010404222
2020	1.060179880232078
2021	1.0584496362122773
2022	1.0570124832965