Year	% of official school-age population
1998	35.839
1999	36.13556
2000	37.53806
2001	38.77293
2002	43.23824
2003	44.39477
2004	45.73724
2005	47.99585
2006	50.88585
2007	53.18309
2008	55.89344
2009	55.48157
2010	55.63308
2011	58.21602
2012	58.33384
2013	58.54766
2014	58.8187
2015	58.56522
2016	58.54472
2017	58.14322
2018	57.76568