Year	% of total teachers
2007	53.3586692810059
2011	82.9646224975586
2012	83.475471496582
2013	89.1704483032227
2015	51.5258102416992
2016	58.9190101623535
2017	57.9845504760742
2021	78.7584915161133
2022	78.8932189941406