Region
United States
577
Mexico
41
Canada
33
Israel
22
Egypt
20
Great Britain
19
Japan
18
Pakistan
17
Indonesia
16
Soviet Union
16
Jordan
14
Venezuela
14
Korea
13
Bangladesh
12
Brazil
12
Saudi Arabia
12
Colombia
11
Afghanistan
10
Portugal
10
Spain
10
Syria
10
Bolivia
9
Chile
9
China
9
Korea (South)
9
Panama
9
Philippines
9
Australia
8
France
8
Italy
8
Peru
8
Poland
8
Romania
8
Saint Lawrence Seaway
8
Thailand
8
Zaire
8
Costa Rica
7
Iceland
7
Singapore
7
Dominican Republic
6
Ecuador
6
États-Unis
6
Germany, West
6
India
6
Jamaica
6
Law and legislation
6
Liberia
6
Argentina
5
Bulgaria
5
Denmark
5
more ...