Year	% of official school-age population
1999	57.84014
2000	58.98038
2001	59.75095
2002	61.7132
2003	62.14172
2004	59.02835
2005	57.42344
2006	61.17493
2007	60.65991
2008	59.24424
2009	57.8914
2010	59.83532
2011	59.83408
2012	58.83135
2013	55.0637
2014	54.11898
2015	53.90912
2016	56.29869
2017	56.44522