Year	% of total population ages 15+ (national estimate)
1981	51.54915686905942
1983	53.50512389585002
1984	54.10696797346942
1985	53.86076760661762
1986	54.06508313277573
1987	54.200099094039764
1988	54.3299518656415
1989	54.727315989663644
1990	55.08197345745351
1991	55.74589798000558
1992	55.184817360111005
1993	55.00441992695794
1994	54.98949146743583
1995	54.834982895197285
1996	54.98251636478096
1997	55.14303356902031
1998	55.282727958113455
1999	55.86950179355872
2000	55.96227537826318
2001	55.87278245672025
2002	56.34454528919705
2003	56.74316782487827
2004	56.7486961350926
2005	57.14321957771746
2006	57.516795267215606
2007	57.75008868841099
2008	58.072269771452255
2009	58.0602886846248
2010	57.902831141635836
2011	57.96072571215223
2012	58.22288468401752
2013	58.207345644650616
2014	58.164509380597046
2015	58.11355334572352
2016	58.37356963186437
2017	58.46396201637908
2018	58.53119957879574
2019	58.68226773955607
2020	57.622538111251856
2021	58.309010998635976
2022	58.91643008312483
2023	57.81829641764209