Year	% of official school-age population
2000	49.09451
2001	50.11745
2002	53.89995
2003	54.67325
2004	55.20984
2005	57.04258
2006	59.52942
2007	62.59842
2008	65.23645
2009	65.49478
2010	64.73009
2011	67.70205
2012	67.87668
2013	67.9884
2014	68.30505
2015	67.91261
2016	67.25136
2017	66.75668
2018	66.32518