Year	% of official school-age population
1999	58.38954
2000	57.43136
2001	61.23214
2002	63.91977
2003	66.30116
2004	61.96382
2005	60.25883
2006	63.48932
2007	62.30497
2008	61.46379
2009	60.13836
2010	63.28193
2011	62.65657
2012	62.88201
2013	58.53681
2014	57.87632
2015	57.34602
2016	59.65832
2017	59.20151