Year	% of official school-age population
1999	54.51003
2000	58.60414
2001	59.26184
2002	60.70643
2004	66.99862
2005	67.52523
2006	70.34123
2007	72.30028
2008	71.5714
2009	71.53278
2010	65.41118
2011	55.69028
2012	54.49387
2013	57.0159
2014	60.8154
2015	63.7132
2016	69.22755
2017	66.29979
2018	66.16095