for 1990 were 3.264 divided as follows:

Belgium 17

Burkina Faso 24

Brazil 2

Czechoslovakia 225

Canada 1

Costa d'Avorio 2

Francia 10

Greece 7

Israel 1

Italy 2500

Poland 16

Portugal 22

Romania 20

Spain 13

United States 2

Hungary 31

Soviet Union 306

Suisse 1

Yugoslavia 62

Venezuela 1

West Germany 1

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Total 3.264