Year	% of people ages 15 and above
1987	76.5784606933594
1988	77.0657501220703
1989	77.5488128662109
1990	77.9412078857422
1991	78.1593475341797
1992	78.4751586914062
1993	78.8777084350586
1994	79.0346984863281
1995	79.3659896850586
1996	79.8363723754883
1997	80.2508010864258
1998	80.8655395507812
1999	81.0589065551758
2000	81.4011917114258
2001	81.9728012084961
2002	82.6161727905273
2003	83.1395492553711
2004	83.5176620483398
2005	83.9584808349609
2006	83.6502685546875
2007	83.1939468383789
2008	83.9617385864258
2009	83.5689392089844
2010	84.0609588623047
2011	84.4144668579102
2012	84.718879699707
2013	84.9606018066406
2014	85.2302627563477
2015	85.7971420288086
2016	86.1503524780273
2017	86.3058013916016
2018	86.4714584350586
2019	86.6712265014648
2020	86.849853515625
2021	86.9194030761719
2022	87.019660949707