Year	% of total teachers
2008	58.2087707519531
2010	65.0792694091797
2011	83.7979965209961
2013	82.5930023193359
2014	80.1490020751953
2015	85.2890014648438
2016	84.8239974975586
2017	88.7049789428711
2019	83.2552871704102
2020	83.3853073120117
2021	83.3850021362305
2023	97.1080017089844