Year	% of total population ages 15+ (national estimate)
1960	53.60711366295908
1970	51.054531153403566
1980	54.140854534924614
1985	56.25827527038542
1987	57.84493509665462
1988	53.765534116785524
1989	60.79971111019183
1990	58.123331611866
1991	60.288709114455486
1992	62.47023356241003
1993	62.60257029854477
1995	63.1060576499837
1996	61.19422510931657
1997	64.26744539787482
1998	64.21079994895712
1999	63.92056419658853
2001	64.45496220253588
2002	64.51778632741635
2003	63.97620116852996
2004	64.50629173472198
2005	64.85576354587398
2006	64.88521528193559
2007	64.06040910035274
2008	64.61307022544025
2009	64.77917579114326
2011	63.9245484108112
2012	63.91940238398157
2013	63.9500572339807
2014	63.41056070540103
2015	63.64607896818831
2016	63.66068917128046
2017	63.76227063211832
2018	63.78918090965806
2019	64.07686604424248
2020	59.83061440243243
2021	62.3911048595216
2022	63.190475911917304
2023	62.84129750686808