Year	% of official school-age population
1998	72.63821
1999	72.63376
2000	73.11352
2001	73.60164
2002	74.17549
2003	74.03601
2004	74.03249
2005	74.19033
2006	76.31834
2007	76.40982
2008	73.64358
2009	74.57313
2010	73.49534
2011	73.0504
2012	72.34472
2013	72.16064
2014	72.92175
2015	74.23306
2016	75.44005
2017	74.86359
2018	75.1222