Region

Min

Average

Max

Number of countries

East Asia & Pacific

0.33

0.60

0.83

15

Eastern Europe & Central Asia

0.43

0.51

0.60

14

EU + EFTA + North America

0.53

0.74

0.90

24

Latin America & Caribbean

0.27

0.53

0.71

30

Middle East & North Africa

0.36

0.50

0.65

8

South Asia

0.36

0.45

0.53

6

Sub-Saharan Africa

0.34

0.47

0.63

31