Ratifying countries
- 1950 - India
- 1950 - Monaco
- 1950 - Liechtenstein
- 1950 - Switzerland
- 1950 - Chile
- 1951 - Israel
- 1951 - France
- 1951 - Pakistan
- 1951 - Lebanon
- 1951 - Norway
- 1951 - Jordan
- 1951 - Denmark
- 1951 - Italy
- 1951 - Vatican City
- 1952 - Philippines
- 1952 - Egypt
- 1952 - Belgium
- 1952 - Guatemala
- 1952 - South Africa
- 1952 - Spain
- 1952 - Mexico
- 1953 - Syria
- 1953 - Sweden
- 1953 - El Salvador
- 1953 - Austria
- 1953 - Nicaragua
- 1953 - San Marino
- 1953 - Japan
- 1953 - Luxembourg
- 1954 - Liberia
- 1954 - Poland
- 1954 - Russia
- 1954 - Thailand
- 1954 - Turkey
- 1954 - Cuba
- 1954 - Romania
- 1954 - Ecuador
- 1954 - Bulgaria
- 1954 - Germany
- 1954 - Hungary
- 1954 - Belarus
- 1954 - Netherlands
- 1954 - Ukraine
- 1955 - United States
- 1955 - Finland
- 1956 - Morocco
- 1956 - Peru
- 1956 - Laos
- 1956 - Venezuela
- 1956 - Panama
- 1956 - Greece
- 1956 - Afghanistan
- 1956 - Argentina
- 1956 - Iraq
- 1956 - Libya
- 1957 - Iran
- 1957 - Haiti
- 1957 - Sudan
- 1957 - United Kingdom
- 1957 - Brazil
- 1957 - Albania
- 1957 - Tunisia
- 1957 - Vietnam
- 1957 - North Korea
- 1958 - Indonesia
- 1958 - Cambodia
- 1958 - Ghana
- 1958 - Australia
- 1958 - Mongolia
- 1958 - Dominican Republic
- 1959 - Sri Lanka
- 1959 - New Zealand
- 1960 - Algeria
- 1961 - Benin
- 1961 - Democratic Republic of the Congo
- 1961 - Nigeria
- 1961 - Colombia
- 1961 - Portugal
- 1961 - Paraguay
- 1961 - Burkina Faso
- 1961 - Côte d'Ivoire
- 1962 - China
- 1962 - Ireland
- 1962 - Tanzania
- 1962 - Somalia
- 1962 - Togo
- 1962 - Cyprus
- 1962 - Malaysia
- 1962 - Mauritania
- 1963 - Madagascar
- 1963 - Cameroon
- 1963 - Senegal
- 1963 - Trinidad and Tobago
- 1964 - Sierra Leone
- 1964 - Jamaica
- 1964 - Niger
- 1964 - Nepal
- 1964 - Uganda
- 1964 - Rwanda
- 1965 - Honduras
- 1965 - Canada
- 1965 - Gabon
- 1965 - Mali
- 1965 - Iceland
- 1966 - Central African Republic
- 1966 - South Korea
- 1966 - Kenya
- 1966 - Zambia
- 1966 - Gambia
- 1967 - Kuwait
- 1967 - Republic of the Congo
- 1968 - Barbados
- 1968 - Botswana
- 1968 - Malta
- 1968 - Botswana
- 1968 - Equatorial Guinea
- 1968 - Guyana
- 1968 - Lesotho
- 1968 - Malawi
- 1969 - Ethiopia
- 1969 - Costa Rica
- 1969 - Uruguay
- 1970 - Yemen
- 1970 - Mauritius
- 1971 - Bahrain
- 1971 - Burundi
- 1971 - Fiji
- 1973 - Eswatini
- 1973 - Singapore
- 1974 - Guinea-Bissau
- 1974 - Oman
- 1975 - Bahamas
- 1975 - Qatar
- 1976 - São Tomé and Príncipe
- 1976 - Bolivia
- 1976 - Papua New Guinea
- 1976 - Suriname
- 1978 - Djibouti
- 1978 - Tonga
- 1981 - Solomon Islands
- 1981 - Saint Vincent and the Grenadines
- 1981 - Saint Vincent and the Grenadines
- 1981 - Saint Lucia
- 1981 - Grenada
- 1981 - Dominica
- 1981 - Tuvalu
- 1982 - Vanuatu
- 1983 - Zimbabwe
- 1983 - Mozambique
- 1984 - Seychelles
- 1984 - Guinea
- 1984 - Cape Verde
- 1984 - Angola
- 1984 - Samoa
- 1984 - Belize
- 1985 - Comoros
- 1986 - Antigua and Barbuda
- 1986 - Saint Kitts and Nevis
- 1986 - Saudi Arabia
- 1988 - Bangladesh
- 1989 - Kiribati
- 1991 - Bhutan
- 1991 - Namibia
- 1991 - Maldives
- 1991 - Brunei
- 1991 - Latvia
- 1992 - Kyrgyzstan
- 1992 - Bosnia and Herzegovina
- 1992 - Myanmar (Burma)
- 1992 - Croatia
- 1992 - Kazakhstan
- 1992 - Slovenia
- 1992 - Turkmenistan
- 1993 - Czechia
- 1993 - Moldova
- 1993 - Uzbekistan
- 1993 - North Macedonia
- 1993 - Georgia
- 1993 - Estonia
- 1993 - Azerbaijan
- 1993 - Slovakia
- 1993 - Tajikistan
- 1993 - Andorra
- 1993 - Armenia
- 1995 - Micronesia
- 1996 - Palau
- 1996 - Lithuania
- 2001 - Serbia
- 2002 - Cook Islands
- 2003 - Timor-Leste
- 2004 - Marshall Islands
- 2006 - Nauru
- 2006 - Montenegro
- 2013 - South Sudan
