Year	male births per female births
1960	1.0421100531117187
1961	1.042088542979109
1962	1.0423128583686043
1963	1.0422613124002995
1964	1.0425908963484798
1965	1.042766013454976
1966	1.0429016498935277
1967	1.0426010092712583
1968	1.042769489166893
1969	1.0425773192272814
1970	1.042486905200709
1971	1.0422809971275255
1972	1.0421588728503806
1973	1.0423413164112791
1974	1.042249144548546
1975	1.0425873546350395
1976	1.0429886940215956
1977	1.0431428867340973
1978	1.043430331877153
1979	1.043086585708975
1980	1.0430353112287005
1981	1.0429541359003582
1982	1.0429469137927578
1983	1.0435596668592737
1984	1.043763962201055
1985	1.043656711401607
1986	1.0438251680296857
1987	1.0439686312754906
1988	1.0440259209293017
1989	1.044511385938911
1990	1.0447652695376934
1991	1.04490003686751
1992	1.0447489520307236
1993	1.0447664278413444
1994	1.044337167663596
1995	1.0444856994207592
1996	1.0445711513767653
1997	1.044450799119414
1998	1.0445887669719485
1999	1.0446551733046865
2000	1.0446783937525252
2001	1.0449415855056507
2002	1.044960940273981
2003	1.0450436769162341
2004	1.0449448479290737
2005	1.0448734553165269
2006	1.045200814080101
2007	1.0450373438363885
2008	1.0446539455021373
2009	1.0447477045061402
2010	1.0448593201591163
2011	1.0449590100016406
2012	1.0448492187868754
2013	1.0446921316548596
2014	1.044709161595752
2015	1.0445273498774015
2016	1.0443662644868847
2017	1.0441960270172446
2018	1.0441296797820094
2019	1.0440198032659707
2020	1.0438941171569134
2021	1.043901816851176
2022	1.0437389610369552