Country | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 |
---|---|---|---|---|---|---|---|---|---|---|
Ratifiers | 2 | 9 | 11 | 14 | 0 | 0 | 0 | 0 | 0 | 0 |
Members (agreement in force) | 0 | 0 | 0.5 | 0.5 | 17 | 18 | 17 | 17 | 17 | 17 |
Bulgaria | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Canada | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Cuba | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 |
Denmark | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
France | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Germany | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Germany, Former GDR | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 |
Iceland | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Italy | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Japan | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Norway | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Poland | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Portugal | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Romania | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 |
Russian Federation | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
Spain | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
United Kingdom | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
United States | 0 | 0 | 0 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
Members (agreement in force) | 0 | 0 | 0.5 | 0.5 | 17 | 18 | 17 | 17 | 17 | 17 |
Ratifiers | 2 | 9 | 11 | 14 | 0 | 0 | 0 | 0 | 0 | 0 |
Membership status is coded as follows: