Year	% of official school-age population
1998	14.2415
1999	18.06941
2000	21.81493
2001	24.86481
2002	24.6037
2004	44.14426
2005	45.66118
2006	51.01331
2007	55.79553
2008	57.91345
2009	60.58607
2010	63.18819
2011	63.24619
2012	64.93942
2013	72.4562
2014	76.18386
2015	75.87308