Year	male births per female births
1960	1.0428584545958375
1961	1.04269890566964
1962	1.0427185841135684
1963	1.04293770928765
1964	1.0428934040833924
1965	1.0427890617822748
1966	1.0428144643421626
1967	1.0429124234365184
1968	1.0428222257771855
1969	1.0427860613717645
1970	1.0428021762359805
1971	1.0427796768153137
1972	1.043052464439207
1973	1.0430622614210479
1974	1.0429294555851931
1975	1.042930591323176
1976	1.0429844852660226
1977	1.043189451161159
1978	1.0434471071548654
1979	1.0435344502969883
1980	1.0434110171739615
1981	1.0426219043528484
1982	1.0420370597016266
1983	1.0421457207255886
1984	1.0419484018135807
1985	1.0420371669848607
1986	1.0427393305862478
1987	1.0432380298420565
1988	1.0431055100443063
1989	1.0427065040426025
1990	1.0424783352487696
1991	1.0422397986946512
1992	1.0416856664033454
1993	1.0414594787467155
1994	1.041004510826472
1995	1.0405154490276343
1996	1.040149193816046
1997	1.0403170783678897
1998	1.0404837183422833
1999	1.0404767575120017
2000	1.0401589762613486
2001	1.0398887200809122
2002	1.039746812778285
2003	1.03934110753427
2004	1.0390084854074395
2005	1.039018157835984
2006	1.0390123471466133
2007	1.0389597963308668
2008	1.0387101679546953
2009	1.0385330814828762
2010	1.0385569143234634
2011	1.0386164216940512
2012	1.0389425391228597
2013	1.0391147948919113
2014	1.0392804553225448
2015	1.039273101278152
2016	1.0392770930975708
2017	1.0392485616700247
2018	1.039281891958624
2019	1.0393182886846852
2020	1.0391021750638703
2021	1.0390527376562697
2022	1.039065474525338