Year	% of total teachers
2001	98.1353378295898
2002	93.7831878662109
2006	87.6987762451172
2010	98.3499221801758
2011	98.3379974365234
2012	100
2013	100
2014	100
2015	100
2016	100
2017	99.9800033569336
2018	99.5550003051758
2019	99.6060028076172
2020	100
2021	100
2022	100