Year	% of official school-age population
1999	37.88363
2000	39.63778
2001	41.12557
2002	46.7934
2003	48.07728
2004	48.57311
2005	51.0763
2006	54.38272
2007	57.15808
2008	60.67106
2009	60.30363
2010	59.93482
2011	62.77282
2012	63.07875
2013	63.48559
2014	64.1703
2015	63.59297
2016	62.86798
2017	62.44794
2018	62.05945