Year	% of total population ages 15+ (national estimate)
1961	62.66266957249218
1991	58.45683578743378
1994	56.42707771281917
2000	58.126841292303354
2001	58.942516500446246
2005	58.916790134217926
2010	56.28473711014673
2012	55.56311786321116
2018	52.84073201699966
2019	54.03093165456077
2020	53.474417127376334
2021	54.520468132997976
2022	55.06266176264684