Year % of female population 1960 2.2329843168024 1961 2.21658472337591 1962 2.22270859017214 1963 2.24873440110113 1964 2.27753770307796 1965 2.2892132711762 1966 2.28794243781129 1967 2.27808606059351 1968 2.24945844259492 1969 2.19978355189187 1970 2.14295217537085 1971 2.07715332147697 1972 1.99923956368582 1973 1.92485357425695 1974 1.87859170264996 1975 1.86723659052472 1976 1.8865855890436 1977 1.93452073744923 1978 2.00015442704022 1979 2.06665178037903 1980 2.12353737400691 1981 2.17174832391987 1982 2.20145555970677 1983 2.21220664051672 1984 2.20997658045703 1985 2.18998408594386 1986 2.15364855658076 1987 2.11376598641106 1988 2.07153948408833 1989 2.01659377356278 1990 1.94915504377771 1991 1.87170471128821 1992 1.78778453952453 1993 1.70396673680728 1994 1.54920073636427 1995 1.36288852933663 1996 1.33174863639532 1997 1.31442394785253 1998 1.3730020805287 1999 1.50426819587228 2000 1.62913194598006 2001 1.72842738376457 2002 1.78380446811672 2003 1.80458085650878 2004 1.83210750168244 2005 1.89280629385617 2006 1.9811496264666 2007 2.08103873272303 2008 2.18527409856554 2009 2.28633794496291 2010 2.37073717607106 2011 2.44084274399787 2012 2.50092262667382 2013 2.55004262485055 2014 2.59593786648795 2015 2.64457579648855 2016 2.68760867020706 2017 2.70739917600236 2018 2.69930358191921 2019 2.66887970898179 2020 2.61719203768077 2021 2.54885096608853 2022 2.48423797147062 2023 2.43998631249399