Year	% of official school-age population
2006	62.98054
2007	63.83019
2008	63.84108
2009	63.89902
2010	63.86172
2011	64.80736
2012	65.01351
2013	65.54243
2014	66.18793
2015	67.33098
2016	68.33681
2017	68.16616
2018	68.18246