Year % of female population 1960 4.10680569833333 1961 4.00964952165746 1962 3.89773565022692 1963 3.77748258477501 1964 3.65792919155739 1965 3.54423556364126 1966 3.43804915163434 1967 3.34004922109716 1968 3.24975438512413 1969 3.16838690404733 1970 3.09335334882694 1971 3.0266800551807 1972 2.97032498178461 1973 2.92018098561469 1974 2.8734092055839 1975 2.82738855094775 1976 2.78153701513743 1977 2.73468154515566 1978 2.68855542797903 1979 2.64668306176553 1980 2.61015561583771 1981 2.58055998591767 1982 2.5575823528735 1983 2.54011262028894 1984 2.53071693641438 1985 2.53043824591353 1986 2.53875298469529 1987 2.55623217802813 1988 2.58111677868732 1989 2.60934500538327 1990 2.63062046232285 1991 2.64356534384633 1992 2.6531455875231 1993 2.66096942578636 1994 2.67263105085649 1995 2.69377053936164 1996 2.72664778708348 1997 2.77051175126888 1998 2.82396344058329 1999 2.8856927864944 2000 2.95680270499845 2001 3.03759434763341 2002 3.12394648657383 2003 3.21036320238195 2004 3.29173505498832 2005 3.36642312564974 2006 3.43357377815399 2007 3.4910120683863 2008 3.54597929642523 2009 3.59856142600971 2010 3.65118408473222 2011 3.7060786820465 2012 3.76835140257479 2013 3.66668187539755 2014 3.43225906007941 2015 3.36797897193309 2016 3.44447098525813 2017 3.53219531929357 2018 3.63748690611794 2019 3.76333904262408 2020 3.89532301251068 2021 4.02071636585078 2022 4.15027449673912 2023 4.30370313474407