Year	male births per female births
1960	1.0559465931205734
1961	1.056110917088949
1962	1.0555309797505505
1963	1.0560136689709403
1964	1.055796360536637
1965	1.0563199232419842
1966	1.0568361911883906
1967	1.055572146744701
1968	1.0578647532910164
1969	1.058278609927769
1970	1.0587981486044244
1971	1.058185784465896
1972	1.058457692272182
1973	1.0579185226769134
1974	1.0581132093693193
1975	1.0580740256050363
1976	1.0577071574403734
1977	1.0578366046227843
1978	1.0577223174484989
1979	1.057461954446577
1980	1.0572362015762113
1981	1.0575506913653419
1982	1.0569254719624992
1983	1.0574438208967585
1984	1.056745516269286
1985	1.0572220306254003
1986	1.0579903805181199
1987	1.0577645242673925
1988	1.0582839443176781
1989	1.0578266680347577
1990	1.059468632588188
1991	1.057877210332795
1992	1.0600556732340594
1993	1.0607102453794561
1994	1.0603882708676968
1995	1.05908138750352
1996	1.0581116888631854
1997	1.056079838044742
1998	1.0559692065404396
1999	1.05678966639858
2000	1.0567656896271718
2001	1.0543691821432721
2002	1.055373288280138
2003	1.054710916805873
2004	1.0545383943469602
2005	1.0542269642554551
2006	1.0540780281537263
2007	1.0532938463088806
2008	1.0536251744186351
2009	1.054116064453904
2010	1.05404199007301
2011	1.0542323062298458
2012	1.0537443719441177
2013	1.0535128639548679
2014	1.0532810024866013
2015	1.0534135440500079
2016	1.0523969093783616
2017	1.053110789279525
2018	1.0522079935341375
2019	1.0522975462581499
2020	1.0523918178542693
2021	1.0527433461570985
2022	1.0528445354104357