for 1991 were 3465 divided as follows:

Albania 4

Argentine 2

Belgium 21

Brazil 1

Burkina Faso 107

Canada 1

Czechoslovakia 92

France 2

Germany 1

Great Britain 1

Greece 1

Hungary 66

Italy 2,691

Ivory Coast 4

Jugoslavia 25

Luxembourg 1

Poland 2

Portugal 7

Rymania 64

Senegal 2

Spain 5

Suviet Union 362

United States 3

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Totale: 3,465