Year % of total population ages 15+ (national estimate) 1961 49.88 1970 49.16 1977 41.23 1979 42.04 1980 42.11 1981 40.04 1983 50.679 1984 49.737 1985 49.954 1986 49.871 1987 49.108 1988 48.643 1989 48.398 1990 48.339 1991 49.272 1992 49.632 1993 49.73 1994 50.33 1995 50.531 1996 50.406 1997 50.521 1998 50.852 1999 51.911 2000 52.293 2001 50.891 2002 51.188 2003 51.348 2004 52.03 2005 53.299 2006 53.114 2007 53.586 2008 53.678 2009 53.473 2010 54.07 2011 53.199 2012 53.249 2013 53.559 2014 53.506 2015 53.31 2016 53.11 2017 53.838 2018 54.184 2019 54.393 2020 53.814 2021 54.484 2022 55.095 2023 54.986