Year	% of total teachers
2012	96.2141723632812
2013	96.7683181762695
2014	96.6046524047852
2015	94.8721771240234
2016	94.3382186889648
2017	92.9439163208008
2018	92.3091201782227
2019	92.7071914672852
2020	90.8240737915039
2021	89.9843978881836
2022	89.4633178710938