for 1991 were 3052 divided as follows:

Albania 4

Argentine 2

Belgium 20

Burkina Faso 51

Canada 1

Czechoslovakia 73

France 2

Germany 1

Great Britain 1

Greece 1

Hungary 55

Italy 2,543

Ivory Coast 3

Jugoslavia 19

Luxembourg 1

Poland 1

Portugal 7

Rymania 38

Spain 4

Suviet Union 222

United States 3

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Totale: 3,052