Year	% of official school-age population
1999	65.38674
2000	66.09472
2001	67.23799
2002	70.22533
2003	70.54514
2004	70.55423
2005	70.62394
2006	70.70825
2007	71.05534
2008	70.6736
2009	70.82235
2010	72.71782
2011	73.37212
2012	74.02315
2013	74.29664