Year	% of total teachers
2005	53.4021987915039
2006	51.4322395324707
2007	55.9990005493164
2008	54.3633308410645
2009	58.4075317382812
2011	57.734001159668
2015	47.5789985656738
2016	50.4309997558594
2017	50.4309997558594
2022	74.3450012207031