Year	% of official school-age population
1998	72.82182
1999	72.82493
2000	73.35254
2001	73.75983
2002	74.39452
2003	74.20037
2004	74.09855
2005	74.31448
2006	76.52977
2007	76.64744
2008	73.92839
2009	74.79607
2010	73.72886
2011	73.32715
2012	72.44111
2013	72.36346
2014	73.2069
2015	74.54136
2016	75.74375
2017	75.12427
2018	75.4435