| March 1970 |
Belgium,
Burundi,
Canada,
Chad,
Dahomey ( since 1975 - Benin),
France,
Gabon,
Haiti,
Ivory Coast,
Luxemburg,
Mali,
Mauritius,
Monaco,
Niger,
Rwanda,
Senegal,
Togo,
Tunisia,
Upper Volta ( since 1984 - Burkina Faso),
Vietnam |
| June 1973 |
Lebanon |
| October 1973 |
Central African Republic |
| June 1976 |
Seychelles |
| December 1977 |
Comoros,
Djibouti,
Zaire (since 1997 - Democratic Republic of the Congo) |
| December 1979 |
Dominica,
Guinea-Bissau,
New Hebrides (since 1980 - Vanuatu) |
| March 1980 |
Mauritania |
| December 1981 |
Republic of the Congo,
Guinea,
Morocco,
Saint Lucia |
| December 1983 |
Egypt |
| December 1989 |
Equatorial Guinea,
Madagascar |
| December 1991 |
Cameroon,
Laos |
| December 1993 |
Bulgaria,
Cambodia,
Rumania |
| December 1995 |
Sao Tome and Principe |
| February 1996 |
Moldavia,
Switzerland |
| December 1996 |
Cape Verde |
