Year	% of official school-age population
2001	81.18348
2002	81.36648
2003	82.13047
2004	80.70044
2005	80.89329
2006	80.49486
2007	81.56189
2008	80.69443
2009	78.55706
2010	78.81799
2011	78.19922
2012	77.39058
2013	76.69126
2014	78.93814
2015	79.0722
2016	78.66168