Year	% of official school-age population
1998	16.14536
1999	24.367
2000	54.08369
2001	50.54062
2002	49.07169
2003	52.07958
2004	56.62928
2005	55.36971
2006	56.30778
2007	57.43879
2008	56.4207
2009	60.63409
2010	68.57565
2011	68.47054
2012	64.81208
2013	65.28791
2014	67.56092
2015	72.20672
2016	71.81504