Subject Region
United States
267
Africa
85
South Africa
53
Africa, Sub-Saharan
35
Kenya
25
Uganda
24
California
23
Developing countries
23
New York (State)
18
China
17
Brazil
16
India
16
Great Britain
15
New York
15
Botswana
14
Malawi
13
Australia
12
Tanzania
11
Asia
10
France
10
Latin America
10
Zambia
10
Thailand
9
Zimbabwe
9
Africa, Southern
8
Canada
8
Nigeria
8
Russia (Federation)
8
Caribbean Area
6
Ghana
6
Haiti
6
Mexico
6
San Francisco
6
Southern States
6
Swaziland
6
Trinidad and Tobago
6
Bolivia
5
Middle East
5
Ontario
5
Pacific Area
5
Papua New Guinea
5
Toronto
5
Africa, North
4
Alabama
4
Argentina
4
Asia, Central
4
Congo (Democratic Republic)
4
England
4
Europe
4
Los Angeles
4
more ...