Year	% of total teachers
2000	49.5073890686035
2001	59.0123481750488
2002	54.1567687988281
2003	50.3432502746582
2004	53.9130401611328
2007	31.1072101593018
2008	55.852840423584
2009	47.9683990478516
2010	62.9411811828613
2011	59.8461494445801
2012	58.2352905273438
2013	57.3654403686523
2014	50.1492500305176
2015	58.3941612243652
2017	61.2220001220703
2018	58.4160003662109
2019	62.5
2020	62.0099983215332
2021	60.0750007629395
2022	64.0240020751953