Year	% of official school-age population
1999	60.44705
2000	64.1993
2001	67.08492
2002	65.63056
2003	62.38376
2004	62.92624
2005	59.62663
2006	64.57763
2007	68.86126
2008	63.89213
2009	75.04447
2010	75.00298
2011	74.75385
2012	74.33071
2013	74.48279
2014	73.33658
2015	73.3022
2016	71.72635
2017	70.51841