Year % of total working-age population with intermediate education 2005 58.15628221944498 2010 53.736645262907324 2012 53.97948960374777 2018 50.97195301607247 2019 52.52296189643201 2020 51.31650204253862 2021 52.14428784152578 2022 52.944518291136326