Year	% of official school-age population
1999	82.86767
2000	76.78266
2001	73.7538
2002	73.23179
2003	73.01525
2004	73.42423
2005	71.25541
2006	75.12258
2008	72.98513
2009	74.05492
2010	78.00945
2011	80.21965
2012	82.12172
2013	77.31111
2014	82.60447
2015	85.63691
2016	84.40982
2017	87.02465
2018	83.00497