Year	% of people ages 15 and above
1983	93.6717376708984
1984	94.5251388549805
1985	94.7134094238281
1986	94.9094696044922
1987	95.100471496582
1988	95.2901916503906
1989	95.3835830688477
1990	95.5611190795898
1991	95.6968383789062
1992	95.818359375
1993	95.934700012207
1994	96.0470504760742
1995	96.1578369140625
1996	96.3335800170898
1997	96.4408416748047
1998	96.7650909423828
1999	96.8602066040039
2000	97.047248840332
2001	97.1309814453125
2002	97.212028503418
2003	97.2931365966797
2004	97.3506088256836
2005	97.4995498657227
2006	97.4553375244141
2007	97.5476226806641
2008	97.6576690673828
2009	98.0476303100586
2010	98.3635406494141
2011	98.6287078857422
2012	98.7599792480469
2013	98.805061340332
2014	98.8331604003906
2015	98.855827331543
2016	98.9837799072266
2017	98.9826278686523
2018	99.1621932983398
2019	99.1801528930664
2020	99.2663803100586
2021	99.3009185791016
2022	99.3256912231445