051015202530354045502015201620172018201920202021202220232024202520262027202820292030
Business as usual
Each country improving at rate of top 20% of their region
Halving
Halving
Each country improving at rate of top 20% of their region
Business as usual
Note: The values from 2016 to 2030 are simulated (2015-based global estimates); Source: Azevedo and others (2019) using the Global Learning Assessment Database; UIS Enrollment Data; and UN population numbers.
 f 
in