Year	% of total teachers
1999	85.5714263916016
2000	83.0839004516602
2001	82.3815765380859
2002	83.0388717651367
2003	82.1623916625977
2004	85.9593124389648
2005	81.7655563354492
2006	80.4536437988281
2007	81.0344772338867
2008	70.8423919677734
2009	83.8157119750977
2010	97.4581680297852
2011	88.6679992675781
2012	90.7440032958984
2014	90.6350021362305
2015	91.5240020751953
2016	90.0390014648438
2017	90.1320037841797
2018	90.1380004882812
2019	89.5912017822266
2020	94.1100006103516
2021	94.5429992675781