Year % of total population ages 15+ (national estimate) 1960 53.63 1970 53.36 1977 53.4 1978 53.37 1979 53.31 1980 51.2 1983 53.74 1985 53.38 1987 53.36 1989 53.42 1990 53.38 1991 56.69 1992 50.3 1993 51.8 1994 51.3 1995 58.19 1996 59.5 1997 59.5 1998 59.9 1999 60.4 2000 57.72 2001 56.8 2002 57.9 2003 60.25 2004 61.943 2005 61.511 2006 61.795 2007 61 2008 60.428 2009 60.78 2010 60.187 2011 60.651 2012 60.362 2013 59.962 2014 59.444 2017 58.808 2018 59.595 2019 60.289 2020 56.023 2021 60.358 2022 61.484 2023 62.286