Year	% of total teachers
1998	100
1999	100
2000	100
2001	100
2002	100
2003	100
2004	100
2005	100
2006	100
2010	97.6050033569336
2014	100
2016	100
2017	98.1019973754883
2018	88.8899993896484
2019	87.0800018310547