Year % of female population 1960 3.58569193189897 1961 3.57815268509985 1962 3.57048410664849 1963 3.5627974463288 1964 3.56943598718122 1965 3.5892031096121 1966 3.60772383302601 1967 3.62500497728986 1968 3.64118635091416 1969 3.6455705681841 1970 3.6394557695687 1971 3.63386477172481 1972 3.62827263170327 1973 3.62240260034598 1974 3.61620297425833 1975 3.60934701631056 1976 3.53918125740788 1977 3.42012758392303 1978 3.32477535646017 1979 3.24929432276588 1980 3.18520523171435 1981 3.1272888043578 1982 3.07351951640317 1983 3.02304559606091 1984 2.97629195722722 1985 2.93662903717428 1986 2.90852491329151 1987 2.8656963536252 1988 2.74865701689172 1989 2.64926604485101 1990 2.62077252144161 1991 2.59624301412358 1992 2.57021632982002 1993 2.53744078931844 1994 2.52089764662697 1995 2.53614492240521 1996 2.57433590652888 1997 2.63471199892286 1998 2.71848340218125 1999 2.80318989766549 2000 2.86796082728995 2001 2.91465383314632 2002 2.94125155319603 2003 2.94944535512784 2004 2.94630431121292 2005 2.94303320273064 2006 2.9476110423649 2007 2.96406314760993 2008 2.9958812013835 2009 3.04070707529489 2010 3.08895987364063 2011 3.13538521100044 2012 3.18057115138157 2013 3.2239661005826 2014 3.2688934187521 2015 3.32139282866487 2016 3.38571695132127 2017 3.46176431546282 2018 3.5469873467508 2019 3.63734701705764 2020 3.7239913031868 2021 3.81477272769049 2022 3.92210884603752 2023 4.03138562091275