Year	% of official school-age population
1999	68.34171
2000	69.60025
2001	72.24397
2002	73.75301
2003	74.25237
2004	70.99533
2005	72.02331
2006	77.91685
2007	77.10728
2008	75.24297
2009	76.13636
2010	75.18289
2011	79.45049
2012	86.35598
2013	89.75713
2014	95.37349
2015	90.11038
2016	87.45942
2017	87.50941
2018	91.15789