Year	% of official school-age population
1999	85.41261
2005	68.37635
2006	64.56668
2007	66.58147
2008	61.70825
2009	56.22799
2011	64.41912
2012	60.41865
2013	61.76097
2014	59.11267
2015	66.12955
2016	59.44791
2017	16.93193
2018	53.81908