English language proficiency in greater China 2017, by region

*EF Education First English Proficiency Index (EF EPI 2018) ranks 88 countries and regions around the world by the average level of English language skills among those adults who took EF test online. The test-taking population represented in this index is self-selected and not guaranteed to be representative. Only those who want to learn English or are curious about their English skills participate in one of these tests. This could skew scores lower or higher than those of the general population. However, the sample is balanced between male and female respondents and represents adult language learners from a broad range of ages. Only cities, regions, and countries with a minimum of 400 test takers were included in the index, but in most cases the number of test takers in 2017 was far greater.
To calculate an EF EPI score, EF uses the 100 point scale. Regional averages are weighted by population.