Gebied
United States
2.592
Great Britain
128
Canada
109
Europe
101
Germany
80
China
74
Africa
62
Developing countries
56
États-Unis
49
Australia
47
California
46
Soviet Union
42
Japan
41
Colombia
40
Latin America
38
England
37
India
35
Mexico
35
Asia
31
Middle East
23
Antarctica
20
Brazil
20
New York (State)
20
Spain
20
France
19
Québec (Province)
19
Europe, Eastern
18
North America
18
Italy
17
Québec
17
Russia (Federation)
17
Netherlands
16
Arctic regions
15
European Union countries
15
Scandinavia
15
South Africa
15
USA
15
Eastern Europe
14
Egypt
14
Ireland
14
New York
14
Outer space
14
Pakistan
14
Arctic Regions
13
Ontario
13
Southeast Asia
13
Alabama
12
America
12
Bangladesh
12
Texas
12
meer ...