Year	% of total population ages 15+ (national estimate)
1979	56.9728148379503
1980	58.5076932622436
1981	59.806246747690764
1982	60.39049447795682
1983	60.00589220416975
1984	60.30344120363727
1985	60.22523437066274
1986	60.574039625150824
1987	60.90681845007451
1988	60.72664291394562
1989	61.358613949050266
1990	61.3656369646394
1991	61.352502555520424
1992	61.383646885970315
1993	61.1575143334573
1994	61.228154147252646
1995	61.55003457203589
1996	61.18730308428423
1997	61.12344193542701
1998	61.573271972667996
1999	61.361104511993
2000	61.43733352983096
2001	61.27321048149105
2002	61.41416184918718
2003	61.377155479121406
2004	61.19029525126958
2005	61.47110804678541
2006	61.46228504897058
2007	61.54541419267954
2008	61.67771312918945
2009	61.48045939800169
2010	61.273792664510395
2011	61.14220608264689
2012	61.33135843710951
2013	61.261825632383044
2014	61.00261552863119
2015	61.16161365900037
2016	61.251145273161995
2017	61.39920244528076
2018	61.59500871066862
2019	61.55178275026966
2020	60.63175384313501
2021	60.83601102670257
2022	61.597409428705326
2023	61.31876106636019