for 1991 were 3114 divided as follows:

Albania 4

Argentine 2

Belgium 20

Burkina Faso 51

Canada 1

Czechoslovakia 78

France 2

Germany 1

Great Britain 1

Greece 1

Hungary 58

Italy 2,581

Ivory Coast 3

Jugoslavia 20

Luxembourg 1

Poland 1

Portugal 7

Rymania 44

Spain 4

Suviet Union 231

United States 3

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Totale: 3,114