Year % of female population 1960 1.23607122343481 1961 1.20500959043213 1962 1.20217853347503 1963 1.21300234354657 1964 1.21935675744572 1965 1.2201966449789 1966 1.22377622377622 1967 1.2273106406641 1968 1.22376944261278 1969 1.21643897910074 1970 1.21135786919558 1971 1.21684019918515 1972 1.24829576641819 1973 1.27327847553053 1974 1.27494362782497 1975 1.27854335605194 1976 1.28513403736799 1977 1.2869642971195 1978 1.31241443341149 1979 1.36144390851097 1980 1.39801998491124 1981 1.41947668220171 1982 1.43573175518584 1983 1.45646343108021 1984 1.47985260905741 1985 1.49840876944837 1986 1.5121188656917 1987 1.52514904207906 1988 1.53215519341847 1989 1.53372055043526 1990 1.54259736238371 1991 1.56428790711953 1992 1.59406653013782 1993 1.62789101640244 1994 1.65242165242165 1995 1.65810868635002 1996 1.65646760920025 1997 1.61740536874234 1998 1.59862716763006 1999 1.62951458288246 2000 1.64922814113273 2001 1.65782164467811 2002 1.67576566210493 2003 1.71285487909615 2004 1.75617113989513 2005 1.79370604532216 2006 1.81094527363184 2007 1.81144742172579 2008 1.79464009974035 2009 1.76830163949245 2010 1.75248520049145 2011 1.75366912195068 2012 1.75685555591929 2013 1.7542534712857 2014 1.74506099708623 2015 1.71583637784301 2016 1.66468241535602 2017 1.61728407811709 2018 1.59166368697962 2019 1.58229447865166 2020 1.58580782091584 2021 1.59220178477482 2022 1.58309264936371 2023 1.57970461285492