Year	% of total teachers
1999	47.8063812255859
2000	44.6365089416504
2001	44.6327705383301
2004	45.9627799987793
2005	52.503849029541
2006	52.8227310180664
2007	59.9299201965332
2008	58.9458084106445
2010	52.5680999755859
2022	37.0030403137207