Year	male births per female births
1960	1.0522730931712923
1961	1.0523452390854193
1962	1.0524351102078349
1963	1.0526066969556103
1964	1.0527113365783989
1965	1.0527910846301436
1966	1.0531270732454918
1967	1.0530076992742834
1968	1.0528767507253212
1969	1.0531765534548823
1970	1.0536845915493185
1971	1.0537387100181246
1972	1.0543761926179869
1973	1.054560724109434
1974	1.0554810273422697
1975	1.0560383339455843
1976	1.057580345145444
1977	1.0578990783534268
1978	1.0581792016560265
1979	1.0583367526230334
1980	1.0588659265898794
1981	1.0591358096434544
1982	1.0584765549457897
1983	1.0586733386757987
1984	1.059194940179545
1985	1.0587854679399722
1986	1.0590475452661137
1987	1.0599582438895432
1988	1.0608458981737987
1989	1.0602865546616151
1990	1.0614849419036791
1991	1.0633103271154816
1992	1.0644163673106901
1993	1.0661615874015462
1994	1.068281608298635
1995	1.0702279522440385
1996	1.0705024224551833
1997	1.071258046585298
1998	1.0718838988928148
1999	1.0720111331606366
2000	1.0729711534861361
2001	1.072228586253547
2002	1.071086881574987
2003	1.0714001494413758
2004	1.0717233214710102
2005	1.071684561594144
2006	1.070737885303954
2007	1.0707352225975135
2008	1.0706212507498671
2009	1.0708347457283796
2010	1.0707378270495436
2011	1.0700330392421886
2012	1.0685081298525405
2013	1.0679877372630082
2014	1.0676489576123562
2015	1.0671257648903565
2016	1.0664921793040774
2017	1.0656451815632209
2018	1.0649916736821567
2019	1.0641230569885394
2020	1.062771964540235
2021	1.062071039271448
2022	1.0613597776812889