Year % of female population 1960 1.490360740273062 1961 1.5320249823180359 1962 1.5707968613408996 1963 1.6066981836569112 1964 1.6525887635196357 1965 1.703437221204942 1966 1.7515302456895705 1967 1.803275038688601 1968 1.8562989084333148 1969 1.9082959172953584 1970 1.9574837671934922 1971 2.0031337609209645 1972 2.0489233883452123 1973 2.0928197208840236 1974 2.1420119995718983 1975 2.200614533481784 1976 2.262288557564099 1977 2.3281335783241754 1978 2.399768020689943 1979 2.4718588251492353 1980 2.5494858945573267 1981 2.6313519867139266 1982 2.722885835831312 1983 2.813250314083723 1984 2.8950898243282723 1985 2.98005019680574 1986 3.065384678787673 1987 3.1599447631716275 1988 3.261968613626337 1989 3.3648216892265603 1990 3.472946248800126 1991 3.579130756223979 1992 3.6923889221755175 1993 3.800513866347587 1994 3.891013679515004 1995 3.9466876062832363 1996 3.9480776332435275 1997 3.919409331052259 1998 3.8896321840261123 1999 3.893348362297022 2000 3.960626813360555 2001 4.0703374422820415 2002 4.181082085840667 2003 4.3035467951994475 2004 4.438692141133634 2005 4.570577033288561 2006 4.709188505674235 2007 4.847436620187099 2008 4.9724723791844365 2009 5.10062923344774 2010 5.229928933244212 2011 5.34105022353606 2012 5.432980466394775 2013 5.50860493920213 2014 5.58412873049468 2015 5.669163747792981 2016 5.766854707332064 2017 5.874278445141284 2018 5.984473989676411 2019 6.098764533027376 2020 6.210079066943934 2021 6.306559615664305 2022 6.368382219836537 2023 6.435425558693838