Year % of total teachers 2013 90.0025863647461 2014 91.14990234375 2015 91.4654693603516 2016 91.4057464599609 2017 91.6008834838867 2018 91.5491104125977 2019 94.041877746582 2020 94.3184432983398 2021 94.3124618530273 2022 94.7833023071289