Year	male births per female births
1960	1.036290657051029
1961	1.0361645638397483
1962	1.0362424269239128
1963	1.0362760426881268
1964	1.0362953416958203
1965	1.0363252526717364
1966	1.0363549810450168
1967	1.0362809100305204
1968	1.0362205589890496
1969	1.0362208908192665
1970	1.0362609005262056
1971	1.036255580934222
1972	1.0364200991183443
1973	1.036523472281594
1974	1.036450848748572
1975	1.036496134837198
1976	1.0366088610582158
1977	1.0366532274610907
1978	1.0366905232275545
1979	1.03675470236445
1980	1.0365534921034278
1981	1.0364352234622585
1982	1.0364543613957793
1983	1.036469824435742
1984	1.0366132600760058
1985	1.036727010264039
1986	1.0369040378627135
1987	1.0370836129209324
1988	1.0369507262142936
1989	1.0369129375863686
1990	1.0369135015724038
1991	1.0369533608437822
1992	1.0370331322512207
1993	1.037063550753009
1994	1.0370339038218077
1995	1.0369406840286561
1996	1.0369813800314007
1997	1.0370594192803917
1998	1.0369217669450017
1999	1.0368148883087498
2000	1.0364021727928412
2001	1.0358658800220795
2002	1.0357130380117023
2003	1.0355663264097028
2004	1.0353659342088573
2005	1.0356139547330612
2006	1.0354227316415936
2007	1.0353463365437634
2008	1.0352307664859783
2009	1.0351971908480087
2010	1.0353067120952142
2011	1.0353204008450125
2012	1.0352551204190465
2013	1.0351487859553365
2014	1.0350920763042601
2015	1.035027685071161
2016	1.0350658061182823
2017	1.0350378468254717
2018	1.035142780770145
2019	1.0351891759767085
2020	1.0351639587688104
2021	1.0351576440272454
2022	1.0352349288990557