Year % of female population 1960 3.55167607054701 1961 3.5588805138458 1962 3.57276511619431 1963 3.58878611852977 1964 3.59953520420575 1965 3.60271447109465 1966 3.59935676693909 1967 3.58952016951502 1968 3.57446005117646 1969 3.55641421129833 1970 3.53638013614348 1971 3.5140992986282 1972 3.48936236048493 1973 3.46320851540001 1974 3.43793367814064 1975 3.41441633698311 1976 3.39385717876177 1977 3.37688743507844 1978 3.35921181208924 1979 3.33343046662321 1980 3.29794551992691 1981 3.25336747599271 1982 3.19934164568997 1983 3.14146904861616 1984 3.08847337614973 1985 3.04304781802846 1986 3.0061694269009 1987 2.97996266786786 1988 2.96085602656702 1989 2.94175297630545 1990 2.92118916141097 1991 2.90152646611588 1992 2.88399672014079 1993 2.87198694170305 1994 2.87104395589502 1995 2.88335755111329 1996 2.90544961019654 1997 2.92221892939457 1998 2.92156848117728 1999 2.90233945762898 2000 2.89555969939577 2001 2.91340222498888 2002 2.94084517333025 2003 2.98329241901718 2004 3.04103981236437 2005 3.10833803677793 2006 3.17778755798177 2007 3.2480989415279 2008 3.32143805113988 2009 3.39884768623378 2010 3.48285842293194 2011 3.57673748233689 2012 3.67815785921535 2013 3.78105442315052 2014 3.87682315599738 2015 3.94520582150988 2016 3.98772274265463 2017 4.02407187663812 2018 4.0584486557905 2019 4.08507468091821 2020 4.10190011279561 2021 4.12185258178416 2022 4.15187279949523 2023 4.18909514736817