1990
2012
South Asia
5.3
6.1
North Amerca
9.5
11.2
Middle East & North Africa
4.0
11.2
Europe & Central Asia
6.2
12.5
World
8.5
14.3
East Asia & Pacific
9.8
14.6
Sub-Saharan Africa
11.1
16.4
Latin America & Caribbean
9.0
21.1