Year	% of official school-age population
2005	63.14506
2006	63.53551
2007	64.63622
2008	64.6377
2009	64.61097
2010	64.59177
2011	65.76042
2012	65.74987
2013	66.27164
2014	66.95944
2015	68.80404
2016	69.66346
2017	68.96849
2018	69.00691