Year	% of total teachers
2014	84.526237487793
2015	84.1535797119141
2016	82.8029022216797
2017	83.7583770751953
2018	85.0889663696289
2019	84.5495681762695
2020	85.2015686035156
2021	85.9197463989258
2022	85.3864288330078
