Year % of female population 1960 7.22224551980665 1961 7.2620779551658 1962 7.24578787372979 1963 7.20899480903486 1964 7.10837913725129 1965 6.78993168117991 1966 6.18639077594266 1967 5.44173011051136 1968 4.67690915736418 1969 4.15356732522014 1970 4.16723085462796 1971 4.66515294129729 1972 5.38611060251772 1973 6.1284056882234 1974 6.64221820456777 1975 6.77335712239966 1976 6.68720729437341 1977 6.52550748653324 1978 6.33825187367455 1979 6.17356381633222 1980 6.05934090534482 1981 5.97921169279302 1982 5.888431281068 1983 5.76709531522643 1984 5.61393627020186 1985 5.42948757941632 1986 5.22623649423519 1987 5.05178381994625 1988 4.94282963942423 1989 4.92027126531713 1990 4.99959728128082 1991 5.16347671231791 1992 5.37711346182396 1993 5.67253350739643 1994 6.00433532207572 1995 6.27119154224467 1996 6.59790688096034 1997 7.03095492007448 1998 7.35407648830061 1999 7.54014047574559 2000 7.7217809577088 2001 7.80840782307373 2002 7.73742025513022 2003 7.64371666892617 2004 7.58474701751115 2005 7.51402499931994 2006 7.39449613420442 2007 7.23569361538948 2008 7.0286881027445 2009 6.74611118562074 2010 6.434678887964 2011 6.16349521238456 2012 5.96066475314763 2013 5.91164511983333 2014 6.04439155471541 2015 6.21608690944311 2016 6.3259163173262 2017 6.38216048105476 2018 6.36869289021601 2019 6.30080842815548 2020 6.27381821376883 2021 6.34504253773956 2022 6.51404992080028 2023 6.79620383564116