The Education First English Proficiency Index (EF EPI) conducts the world’s most expansive ranking of adults by their fluency in English. This year’s index featured 111 countries, Laos ranked the lowest on the list and Netherlands ranked the highest.
The countries were divided into five bands: very high proficiency, high proficiency, moderate proficiency, low Proficiency, and very low proficiency. According to the EF EPI, “The bands make it easier to identify countries and regions with similar skill levels and to draw comparisons between and within regions.”
This year’s data is drawn from 2.1 million people around the world who took the EF Standard English Test (EF SET) or one of EF’s English placement tests in 2021. The test takers in this edition are 18 years or above, with 25 being the average age and an almost equal number of male and female participants taking part in the assessment.