Year	% of official school-age population
1999	59.62356
2000	63.11966
2001	66.36957
2002	64.99582
2003	61.67845
2004	62.60268
2005	58.83652
2006	64.45765
2007	68.45021
2008	62.54205
2009	74.80387
2010	74.46792
2011	74.31853
2012	77.20319
2013	77.20435
2014	73.12044
2015	73.1532
2016	71.5957
2017	70.54852