Ratifying countries
- 1977 - United States
- 1977 - Iran
- 1977 - Pakistan
- 1978 - Ghana
- 1978 - El Salvador
- 1978 - Libya
- 1979 - Botswana
- 1979 - Niger
- 1979 - Sweden
- 1979 - Ecuador
- 1979 - Jordan
- 1979 - Tunisia
- 1979 - Botswana
- 1980 - Bahamas
- 1980 - Laos
- 1980 - Finland
- 1980 - Mauritania
- 1980 - Gabon
- 1980 - Bangladesh
- 1981 - Norway
- 1982 - Saint Lucia
- 1982 - Mauritius
- 1982 - South Korea
- 1982 - Switzerland
- 1982 - Denmark
- 1982 - Austria
- 1983 - Saint Vincent and the Grenadines
- 1983 - Saint Vincent and the Grenadines
- 1983 - Tanzania
- 1983 - Bolivia
- 1983 - Republic of the Congo
- 1983 - Costa Rica
- 1983 - United Arab Emirates
- 1984 - France
- 1984 - Cameroon
- 1984 - Seychelles
- 1984 - Oman
- 1984 - Central African Republic
- 1984 - Guinea
- 1984 - Togo
- 1984 - Rwanda
- 1984 - Samoa
- 1984 - Belize
- 1985 - Kuwait
- 1985 - Comoros
- 1985 - Vanuatu
- 1985 - Senegal
- 1985 - Uruguay
- 1985 - Suriname
- 1985 - Vatican City
- 1986 - Philippines
- 1986 - Benin
- 1986 - Guinea-Bissau
- 1986 - Sierra Leone
- 1986 - Bahrain
- 1986 - Jamaica
- 1986 - Belgium
- 1986 - Italy
- 1986 - Argentina
- 1986 - Equatorial Guinea
- 1986 - Antigua and Barbuda
- 1986 - Saint Kitts and Nevis
- 1986 - Saudi Arabia
- 1987 - Guatemala
- 1987 - Netherlands
- 1987 - Burkina Faso
- 1987 - Iceland
- 1988 - Liberia
- 1988 - Solomon Islands
- 1988 - Nigeria
- 1988 - New Zealand
- 1988 - Guyana
- 1989 - China
- 1989 - Russia
- 1989 - Algeria
- 1989 - Peru
- 1989 - Malta
- 1989 - Liechtenstein
- 1989 - Bulgaria
- 1989 - Spain
- 1989 - Hungary
- 1989 - Luxembourg
- 1989 - Belarus
- 1989 - Côte d'Ivoire
- 1989 - Mali
- 1989 - Gambia
- 1990 - Barbados
- 1990 - Yemen
- 1990 - Romania
- 1990 - Canada
- 1990 - Ukraine
- 1990 - Paraguay
- 1991 - Poland
- 1991 - Djibouti
- 1991 - Uganda
- 1991 - Australia
- 1991 - Chile
- 1991 - Germany
- 1991 - Malawi
- 1991 - Maldives
- 1991 - Brunei
- 1991 - Latvia
- 1992 - Madagascar
- 1992 - Zimbabwe
- 1992 - Kyrgyzstan
- 1992 - Egypt
- 1992 - Bosnia and Herzegovina
- 1992 - Brazil
- 1992 - Portugal
- 1992 - Croatia
- 1992 - Kazakhstan
- 1992 - Slovenia
- 1992 - Turkmenistan
- 1993 - Czechia
- 1993 - Moldova
- 1993 - Uzbekistan
- 1993 - Burundi
- 1993 - North Macedonia
- 1993 - Georgia
- 1993 - Albania
- 1993 - Papua New Guinea
- 1993 - Estonia
- 1993 - Slovakia
- 1993 - Tajikistan
- 1993 - Armenia
- 1994 - Ethiopia
- 1994 - Namibia
- 1994 - San Marino
- 1994 - Lesotho
- 1994 - Dominican Republic
- 1995 - Honduras
- 1995 - Eswatini
- 1995 - Colombia
- 1995 - Cape Verde
- 1995 - Zambia
- 1995 - Panama
- 1995 - Mongolia
- 1995 - Micronesia
- 1996 - São Tomé and Príncipe
- 1996 - Cyprus
- 1996 - Palau
- 1996 - Dominica
- 1997 - Chad
- 1997 - Lebanon
- 1998 - Cambodia
- 1998 - Grenada
- 1998 - Venezuela
- 1998 - United Kingdom
- 1998 - Greece
- 1999 - Ireland
- 1999 - Kenya
- 1999 - Cuba
- 1999 - Nicaragua
- 2000 - Monaco
- 2000 - Lithuania
- 2001 - Serbia
- 2001 - Trinidad and Tobago
- 2002 - Democratic Republic of the Congo
- 2002 - Mozambique
- 2002 - Cook Islands
- 2003 - Tonga
- 2004 - Japan
- 2005 - Timor-Leste
- 2006 - Haiti
- 2006 - Sudan
- 2006 - Nauru
- 2006 - Montenegro
- 2009 - South Africa
- 2009 - Afghanistan
- 2011 - Morocco
- 2013 - South Sudan
- 2019 - Angola
