Year	male births per female births
1960	1.0520872380950808
1961	1.0517952296133106
1962	1.0534451614688756
1963	1.053919130814492
1964	1.0537481062622365
1965	1.0537283380699738
1966	1.0537344956811063
1967	1.0538995941014222
1968	1.0539581040594606
1969	1.0540355642046613
1970	1.0545507327169221
1971	1.054341909548955
1972	1.0546719562002962
1973	1.054608111637812
1974	1.0549758219580918
1975	1.0552594733483458
1976	1.055943005692575
1977	1.056057031366666
1978	1.0562821549863104
1979	1.0563985764968462
1980	1.0569245439054789
1981	1.0578061746119085
1982	1.058017238435923
1983	1.0583876984764378
1984	1.0592208192088663
1985	1.0601085008863191
1986	1.0616244267980004
1987	1.0637217668003605
1988	1.0654044542062937
1989	1.066330910797119
1990	1.0682163292380071
1991	1.069873599634977
1992	1.0710281278923535
1993	1.073235650258543
1994	1.0754147022651315
1995	1.0770585610854573
1996	1.0780066286854328
1997	1.078942576861301
1998	1.0791508137069128
1999	1.0787155073289383
2000	1.0790309109145262
2001	1.0780389746894237
2002	1.0769479750597877
2003	1.0766764986573925
2004	1.076734458967544
2005	1.076821633587043
2006	1.0758050342553116
2007	1.0755470705383556
2008	1.0752261900648257
2009	1.0748861201098523
2010	1.0741677451376
2011	1.074639515844886
2012	1.0743796694955245
2013	1.0719295017035029
2014	1.0717665986101248
2015	1.069149563995691
2016	1.0694408166383222
2017	1.0673979560912368
2018	1.0647768026145572
2019	1.063189272137444
2020	1.060285937754927
2021	1.0585361865201712
2022	1.0570715700687436