Year	male births per female births
1960	1.043
1961	1.042
1962	1.042
1963	1.042
1964	1.041
1965	1.041
1966	1.041
1967	1.04
1968	1.04
1969	1.04
1970	1.04
1971	1.04
1972	1.04
1973	1.039
1974	1.038
1975	1.038
1976	1.039
1977	1.04
1978	1.042
1979	1.043
1980	1.044
1981	1.045
1982	1.044
1983	1.044
1984	1.045
1985	1.045
1986	1.046
1987	1.046
1988	1.046
1989	1.045
1990	1.044
1991	1.042
1992	1.041
1993	1.041
1994	1.041
1995	1.041
1996	1.042
1997	1.044
1998	1.045
1999	1.045
2000	1.046
2001	1.046
2002	1.045
2003	1.046
2004	1.046
2005	1.047
2006	1.047
2007	1.047
2008	1.047
2009	1.046
2010	1.045
2011	1.044
2012	1.043
2013	1.043
2014	1.043
2015	1.043
2016	1.043
2017	1.043
2018	1.043
2019	1.044
2020	1.044
2021	1.044
2022	1.044