Year	% of official school-age population
2003	64.90719
2004	64.75725
2005	65.07425
2006	67.07957
2007	67.78966
2008	68.53762
2009	68.90985
2010	67.99245
2011	68.00018
2012	67.73234
2013	68.18742
2014	68.50184
2015	69.1844
2016	69.72337
2017	68.80228
2018	68.04588