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