Year	% of total teachers
2007	100
2008	100
2009	100
2010	100
2011	100
2012	100
2013	96.0150604248047
2014	96.9945373535156
2019	97.3091888427734
2020	96.7680816650391
2021	88.6024398803711
2022	97.3923721313477