Year	% of official school-age population
1997	45.05304
1998	44.93928
1999	46.26666
2000	49.74585
2001	49.6835
2002	49.73917
2003	50.83268
2004	51.36387
2005	52.28248
2006	53.51319
2007	53.99876
2008	54.1992
2010	56.3783
2011	55.95168
2012	54.87756
2013	55.3472
2014	54.74881
2015	55.12278
2016	54.99353
2017	55.69952