Year % of female population 1960 0.865817091454273 1961 0.88164387351321 1962 0.907403335897551 1963 0.93624911349557 1964 0.963969143317472 1965 0.985585668106696 1966 1.0034137815626 1967 1.02164611660481 1968 1.04117755823667 1969 1.06134260664961 1970 1.08221356338058 1971 1.10601033100485 1972 1.13287041051432 1973 1.16061641675739 1974 1.18747590059616 1975 1.21934233947948 1976 1.26477658657507 1977 1.32270269307202 1978 1.38971492811947 1979 1.46171363382388 1980 1.51052483471243 1981 1.51660943956672 1982 1.49812660097035 1983 1.47172889885398 1984 1.44432690849831 1985 1.42215806502252 1986 1.40934669141925 1987 1.40454421158513 1988 1.40213365681965 1989 1.39949019838195 1990 1.39907970647301 1991 1.40409052340322 1992 1.41407104480013 1993 1.42708488477067 1994 1.43964143806201 1995 1.45224264466873 1996 1.47262745292797 1997 1.5000005488039 1998 1.52940660034245 1999 1.56168365959127 2000 1.59626174263561 2001 1.63262045634199 2002 1.66969478959626 2003 1.70109310663574 2004 1.72119071392081 2005 1.72942508020089 2006 1.72808815090608 2007 1.72999006034033 2008 1.74224736846985 2009 1.75876916079961 2010 1.77930734363747 2011 1.80322666489444 2012 1.83428550308688 2013 1.88003991516813 2014 1.93776239533984 2015 2.0091868621257 2016 2.0921270339211 2017 2.17586738569355 2018 2.2571539584711 2019 2.33947893486426 2020 2.42196606422719 2021 2.49077174347048 2022 2.55215605713747 2023 2.61483391351249