Year	male births per female births
1960	1.077
1961	1.077
1962	1.077
1963	1.078
1964	1.078
1965	1.078
1966	1.077
1967	1.077
1968	1.077
1969	1.076
1970	1.076
1971	1.076
1972	1.076
1973	1.076
1974	1.075
1975	1.075
1976	1.075
1977	1.075
1978	1.074
1979	1.074
1980	1.074
1981	1.075
1982	1.074
1983	1.075
1984	1.075
1985	1.075
1986	1.074
1987	1.073
1988	1.072
1989	1.072
1990	1.072
1991	1.074
1992	1.075
1993	1.077
1994	1.078
1995	1.08
1996	1.081
1997	1.081
1998	1.08
1999	1.079
2000	1.08
2001	1.079
2002	1.08
2003	1.08
2004	1.081
2005	1.081
2006	1.081
2007	1.081
2008	1.082
2009	1.082
2010	1.082
2011	1.082
2012	1.082
2013	1.081
2014	1.081
2015	1.08
2016	1.08
2017	1.079
2018	1.079
2019	1.078
2020	1.078
2021	1.078
2022	1.077