Year	male births per female births
1960	1.061542441164333
1961	1.0615729722944591
1962	1.0620865371573864
1963	1.0620741619596246
1964	1.0620791983699607
1965	1.0620475445497906
1966	1.0619089458496156
1967	1.0626070904003189
1968	1.0626601427770959
1969	1.0626228311687838
1970	1.0633396325434343
1971	1.0631981355679383
1972	1.0633536845819371
1973	1.0633592078787648
1974	1.063946148172152
1975	1.0645210673676078
1976	1.0653485823783726
1977	1.0660591291624852
1978	1.0667386413318158
1979	1.067490982095627
1980	1.068430990329142
1981	1.0700801341166248
1982	1.0717188057534444
1983	1.0736488462453846
1984	1.0756144052716745
1985	1.0791804054998506
1986	1.0825811409419197
1987	1.0869785562405117
1988	1.0914559869410263
1989	1.0957801129980889
1990	1.100259193775953
1991	1.1040825567869257
1992	1.1077368666321874
1993	1.112182539367477
1994	1.1162763603505952
1995	1.1197476415497518
1996	1.123056085665393
1997	1.1258706875739275
1998	1.1276043172124264
1999	1.1284354401796968
2000	1.1296325425859144
2001	1.1297663526371196
2002	1.130310979907677
2003	1.1304406360753487
2004	1.1311879386496604
2005	1.1318789231223085
2006	1.1315110225497942
2007	1.1311203186861045
2008	1.1302210109304625
2009	1.1295577255567386
2010	1.1280887855568729
2011	1.1289738311071276
2012	1.1287548592209256
2013	1.124252140327367
2014	1.122618907330236
2015	1.1171363444468987
2016	1.116646847187607
2017	1.1125970582402023
2018	1.1070368792528342
2019	1.1035421746490603
2020	1.0976013671786218
2021	1.0935679807045013
2022	1.0900580090401215