Year	male births per female births
1960	1.0514199797921555
1961	1.0513871979532854
1962	1.0514537390724608
1963	1.0515851963625136
1964	1.0516098678743884
1965	1.0516288324669716
1966	1.05218240882702
1967	1.052259655969428
1968	1.052367536477018
1969	1.0529828749529586
1970	1.05359987035722
1971	1.053622250825165
1972	1.054279419322449
1973	1.054313020997613
1974	1.0552584697151597
1975	1.0557363809933362
1976	1.0571798782676272
1977	1.0573423884803637
1978	1.057726660936181
1979	1.0580312925311306
1980	1.0589615893248026
1981	1.059562539652922
1982	1.058704563926792
1983	1.0588032517277672
1984	1.0592908251567812
1985	1.0586156022648858
1986	1.0589224696953075
1987	1.059785039369254
1988	1.0605209158817246
1989	1.0598256028033697
1990	1.0609876892812629
1991	1.0628395717888044
1992	1.0639391832535259
1993	1.065840303357558
1994	1.0680671076739454
1995	1.0699204032163134
1996	1.0700295930879882
1997	1.0706450489993793
1998	1.0710931225293712
1999	1.070945574659078
2000	1.0718826421416046
2001	1.0709214997912235
2002	1.069386368193147
2003	1.0696480638665027
2004	1.0699758892280773
2005	1.069939607348179
2006	1.0688896118077533
2007	1.068810899143903
2008	1.068856306401603
2009	1.0689815245502996
2010	1.0685860985560682
2011	1.0677518311690308
2012	1.0660829382585315
2013	1.0653065639741433
2014	1.0650681183005335
2015	1.0645695286245074
2016	1.0638824346311635
2017	1.0628483478889215
2018	1.06200180222077
2019	1.0608397152722868
2020	1.0594051098037973
2021	1.0585219356545503
2022	1.0575734887543462