Year	% of official school-age population
2001	75.30288
2002	77.74588
2003	77.89377
2004	78.18448
2005	78.6151
2006	78.49566
2007	78.38432
2008	77.51249
2009	77.22065
2010	78.82089
2011	79.28549
2012	80.38858
2013	81.38831
2014	82.49402
2015	83.16075
2016	83.69711
2017	83.71622
2018	83.92381