Year	% of official school-age population
1998	37.91828
1999	37.65013
2000	37.91238
2002	36.09392
2004	39.65696
2005	43.52217
2006	44.91336
2007	45.5959
2008	51.19988
2010	47.73059
2011	50.11175
2012	53.17449
2013	52.14488