Year	% of people ages 15 and above
1974	77.7884902954102
1975	77.8084487915039
1976	78.1908264160156
1977	78.6035537719727
1978	79.0456466674805
1979	79.4430923461914
1980	79.7575988769531
1981	80.1885833740234
1982	80.5832290649414
1983	80.9857177734375
1984	81.3649826049805
1985	81.7317428588867
1986	82.0908432006836
1987	82.4002380371094
1988	82.8426513671875
1989	83.2729721069336
1990	83.5946884155273
1991	84.2497482299805
1992	84.8778305053711
1993	85.5295486450195
1994	86.1509399414062
1995	86.7825393676758
1996	87.1184921264648
1997	87.4519195556641
1998	87.8068313598633
1999	88.1361312866211
2000	88.4030303955078
2001	88.5939025878906
2002	88.7448806762695
2003	89.618293762207
2004	89.5352478027344
2005	90.0569229125977
2006	89.9197082519531
2007	90.5113220214844
2008	90.7873687744141
2009	91.0988388061523
2010	91.0977783203125
2011	91.7859573364258
2012	92.0330429077148
2013	92.1015319824219
2014	92.5114822387695
2015	92.6756896972656
2016	93.1671371459961
2017	93.2591323852539
2018	93.3964614868164
2019	93.8924179077148
2020	93.9134292602539
2021	94.1902770996094
2022	94.3460922241211