Year	% of official school-age population
1999	48.60161
2000	59.11686
2001	68.17495
2002	77.31239
2003	79.44179
2004	81.33708
2005	83.72436
2006	83.53268
2007	84.77205
2008	73.69893
2010	72.19494
2011	72.92405
2013	72.44
2014	73.59539
2016	78.14189
2017	80.27913
2018	82.09551