Year	% of primary school age children
1971	17.0148
1972	17.69783
1973	18.06894
1974	20.54241
1977	20.67197
1999	44.04091
2002	51.62062
2003	51.59715
2004	51.60521
2005	56.65099
2006	57.96729
2007	60.112
2010	68.27944
2011	69.26966
2012	67.05216
2013	62.60635
2014	63.47074
2015	60.63998
2016	62.13872
2017	67.335
2018	58.94142