Year	male births per female births
1960	1.0551398255680324
1961	1.0559829184722398
1962	1.056652990549965
1963	1.0575982077271517
1964	1.0582261129356088
1965	1.0590758169824717
1966	1.0592962517962068
1967	1.0584279606875566
1968	1.057323929375666
1969	1.0563855668961177
1970	1.0569349553037772
1971	1.0581668377435045
1972	1.058693294101301
1973	1.059589276694365
1974	1.0599620935674205
1975	1.0597481722760766
1976	1.0585402627878642
1977	1.0571694820730817
1978	1.0543747528853373
1979	1.0513070069565915
1980	1.0478244569555908
1981	1.0444130281448483
1982	1.0426491267829203
1983	1.0419789882565045
1984	1.0420213379446435
1985	1.0409935872521283
1986	1.0411480093568979
1987	1.0420436159090305
1988	1.04493127313182
1989	1.047193489723927
1990	1.049280020807094
1991	1.0506919798487155
1992	1.0519705162199442
1993	1.0529611541275834
1994	1.053160181758753
1995	1.0535965055837735
1996	1.0532323255945761
1997	1.0532167719756071
1998	1.0531833915609305
1999	1.053424374141168
2000	1.0538760762917763
2001	1.0533659631069454
2002	1.052263951868827
2003	1.050550656729553
2004	1.0507107312308377
2005	1.051430810149232
2006	1.052296420272959
2007	1.0528599040237037
2008	1.053486103595768
2009	1.0541835931776469
2010	1.053669310112898
2011	1.053469923649855
2012	1.0524816995703046
2013	1.0522140234038992
2014	1.052419797086509
2015	1.052447249098584
2016	1.0523655155679144
2017	1.0528074979773983
2018	1.0529345464325146
2019	1.0533440147153716
2020	1.0531555827325698
2021	1.053269448874221
2022	1.0531348754163896