Whereas 7 of the 9 richest countries have literacy rates of 100 percent (the other 2 have rates of 96 and 97 percent), the 18 poorest countries have literacy rates ranging between a high of 81 percent and a low of 16 percent, with 10 of them under 50 percent.
Tujuh dari 9 negara terkaya memiliki rasio melek huruf 100 persen (di 2 negara lainnya, 96 dan 97 persen), sedangkan di 18 negara termiskin, rasionya berkisar antara yang tertinggi, 81 persen, dan yang terendah, 16 persen, dan 10 negara di antaranya, di bawah 50 persen.