Year	% of total teachers
2003	52.0189399719238
2004	54.817081451416
2005	57.9615287780762
2006	61.2564010620117
2007	62.357349395752
2008	64.3790817260742
2009	65.7482223510742
2010	68.4130020141602
2011	69.6579971313477
2012	71.9739990234375
2013	92.1449966430664
2014	93.0309982299805
2015	92.7839965820312
2016	94.9919967651367
2017	95.4300003051758
2018	96.0240020751953
2019	96.4619979858398
2020	96.3369979858398
2021	96.7320022583008
2022	96.5719985961914
2023	95.9509963989258