Year % of female population 1960 2.34996699834369 1961 2.19632398457216 1962 2.01301736027995 1963 1.83580362794962 1964 1.67635132310522 1965 1.55586704044854 1966 1.48381338119415 1967 1.46748787066958 1968 1.50935392935729 1969 1.58646622923546 1970 1.67130464586785 1971 1.72054837569234 1972 1.69789448960883 1973 1.62281600280956 1974 1.53365340422974 1975 1.45224811289793 1976 1.38955977422962 1977 1.34998334144904 1978 1.32594559714087 1979 1.31594760245163 1980 1.32061415251376 1981 1.32560066280033 1982 1.32556366408888 1983 1.32394662183461 1984 1.32217751335354 1985 1.3207030715389 1986 1.31869893400848 1987 1.31428701408002 1988 1.30950079949395 1989 1.31097988104386 1990 1.32828415587829 1991 1.37219084914258 1992 1.44229283219485 1993 1.51471892046223 1994 1.56901317810183 1995 1.59872330117838 1996 1.60774384462297 1997 1.60936059439232 1998 1.61470283442095 1999 1.63025715866693 2000 1.66065438896272 2001 1.69815352125324 2002 1.72685124821478 2003 1.73454198643385 2004 1.71617046322034 2005 1.69076599249565 2006 1.68727771253912 2007 1.72682334097374 2008 1.81856210002499 2009 1.95179061151829 2010 2.10160198478785 2011 2.27138367715237 2012 2.45827810502505 2013 2.64355127580083 2014 2.83368386386941 2015 3.02858467167322 2016 3.22037989219078 2017 3.40696061282345 2018 3.59032194860865 2019 3.7736921237377 2020 3.95943637114641 2021 4.14080457096063 2022 4.30565069085525 2023 4.45297741836627