Year	% of total teachers
2000	54.4176712036133
2001	39.0243911743164
2003	40.9016418457031
2004	46.2041893005371
2006	35.8414688110352
2007	36.9153709411621
2008	34.7139015197754
2009	33.9314002990723
2010	37.8017501831055
2011	35.9223289489746
2012	38.9355697631836
2013	35.4442291259766
2015	47.1576194763184
2016	54.0807189941406
2018	61.2929992675781
2019	65.8077697753906
2020	70.1102523803711
2021	70.8931427001953
2022	71.2169723510742