Year	% of people ages 15 and above
1985	40.2946510314941
1986	40.5508308410645
1987	41.2992706298828
1988	42.0324211120605
1989	42.8251609802246
1990	43.6049385070801
1991	44.8233184814453
1992	45.1633796691895
1993	46.0021705627441
1994	46.8695106506348
1995	47.0176315307617
1996	47.8064498901367
1997	48.8288803100586
1998	50.1755790710449
1999	51.0516586303711
2000	47.0571594238281
2001	48.7626113891602
2002	49.4724502563477
2003	49.4743690490723
2004	51.3834114074707
2005	51.4238204956055
2006	57.4711494445801
2007	50.1195487976074
2008	49.8100395202637
2009	50.6923789978027
2010	51.1569595336914
2011	51.7663116455078
2012	52.4101600646973
2013	53.0027809143066
2014	54.0067596435547
2015	54.8183212280273
2016	55.4379196166992
2017	56.485538482666
2018	59.5684585571289
2019	59.51171875
2020	59.6175117492676
2021	60.034610748291
2022	60.3126983642578