Year	% of total teachers
1999	100
2000	100
2001	100
2002	100
2003	95.8785171508789
2004	95.1983337402344
2005	91.8326721191406
2006	93.2432403564453
2008	98.9189224243164
2009	96.2025299072266
2010	96.2406005859375
2011	95.8333282470703
2012	95.8558578491211