Year % female 1987 24.1721897125244 1988 24.2563209533691 1989 25.31715965271 1990 25.3794498443604 1991 25.1968193054199 1992 25.5247993469238 1993 26.5645008087158 1994 28.3784694671631 1995 28.6004390716553 2005 27.7489795684814 2006 27.5628204345703 2007 27.4732303619385 2008 26.9981899261475 2009 26.0497608184814 2010 25.7177200317383 2011 26.4362697601318 2012 26.019250869751 2013 25.9798107147217 2014 27.4313793182373 2015 28.0130996704102 2016 29.1274700164795 2017 29.0566902160645 2018 29.1207695007324 2019 29.4010906219482