Year	male births per female births
1960	1.06
1961	1.06
1962	1.06
1963	1.06
1964	1.06
1965	1.06
1966	1.06
1967	1.06
1968	1.06
1969	1.06
1970	1.06
1971	1.06
1972	1.06
1973	1.06
1974	1.06
1975	1.06
1976	1.06
1977	1.06
1978	1.06
1979	1.06
1980	1.06
1981	1.06
1982	1.06
1983	1.06
1984	1.06
1985	1.06
1986	1.06
1987	1.06
1988	1.06
1989	1.06
1990	1.06
1991	1.06
1992	1.06
1993	1.06
1994	1.06
1995	1.06
1996	1.06
1997	1.06
1998	1.06
1999	1.06
2000	1.06
2001	1.06
2002	1.06
2003	1.06
2004	1.06
2005	1.06
2006	1.06
2007	1.06
2008	1.06
2009	1.06
2010	1.06
2011	1.06
2012	1.06
2013	1.06
2014	1.06
2015	1.06
2016	1.06
2017	1.06
2018	1.06
2019	1.06
2020	1.06
2021	1.06
2022	1.06