Year	% of official school-age population
1998	46.42235
1999	46.53078
2000	46.98768
2001	47.85398
2002	48.98399
2003	50.64505
2004	51.72785
2005	52.52028
2006	54.05267
2007	54.74078
2008	56.73014
2009	58.00141
2010	59.20612
2011	60.91692
2012	61.44436
2013	62.40444
2014	62.87051
2015	63.18793
2016	64.49451