Year	% of official school-age population
1998	52.22191
1999	52.27453
2000	53.13357
2001	53.74008
2002	56.2733
2003	56.92468
2004	57.2546
2005	58.54973
2006	60.42615
2007	62.36116
2008	64.10254
2009	64.07211
2010	64.04526
2011	66.53117
2012	66.50074
2013	66.49306
2014	66.6178