Year	% of total teachers
1999	81.8242263793945
2000	84.0598983764648
2001	94.4820938110352
2002	81.2797317504883
2004	85.4580764770508
2005	83.6099014282227
2006	90.2747497558594
2007	91.3859329223633
2008	92.2607498168945
2009	92.5515899658203
2010	90.8642578125
2011	90.118278503418
2014	98.0789794921875