Year	% of total teachers
2013	80.7968673706055
2014	83.4934997558594
2015	85.2063903808594
2016	86.4089508056641
2017	86.445198059082
2018	87.6342391967773
2019	88.1935577392578
2020	88.7058563232422
2021	88.4527969360352
2022	93.0192413330078