Updated daily
View our work on COVID-19 vaccinationsShare of students achieving minimum learning outcomes, 1975 to 2015
Proportion of students achieving a minimum proficiency benchmark. Achievement outcomes come from standardized, psychometrically-robust international and
regional tests. In order to maximize coverage by country, tests have been harmonized and pooled across subjects (math, reading, science) and levels (primary and
secondary education). See source for details on proficiency benchmarks.
- More
1975
2015