Year	% of primary school age children
1970	64.90084
1998	81.97803
2000	90.9739
2001	91.42963
2002	93.12007
2003	93.12703
2005	96.56531
2006	96.49188
2007	95.83065
2008	95.95292
2009	96.00262
2010	96.08011
2011	95.56687
2012	94.50516
2013	91.64358
2014	89.15295
2015	86.61827
2016	85.17199
2017	80.96574
2018	81.60033