Country name 1990 1991 1992 1993
Peru 16
Niger 19
Morocco 20
Egypt, Arab Rep. 20
Namibia 22
Tanzania 28
Zambia 31
Madagascar 32
Malawi 36
Rwanda 39
Australia
Moldova
Austria
Uruguay
Somalia
Northern Mariana Islands
Azerbaijan
Bahamas, The
Algeria
Bahrain
Libya
Bangladesh
Angola
Barbados
American Samoa
Belarus
Serbia
Belgium
St. Vincent and the Grenadines
Belize
Turkmenistan
Benin
Albania
Bermuda
Macao SAR, China
Bhutan
Antigua and Barbuda
Bolivia
New Zealand
Bosnia and Herzegovina
Palau
Botswana
Puerto Rico
Brazil 18
Brunei Darussalam
Sint Maarten (Dutch part)
Bulgaria
Sri Lanka
Burkina Faso 25
Sweden
Burundi
Tonga
Cabo Verde
Ukraine
Cambodia
Vietnam
Cameroon 22
Lesotho
Canada
Lithuania
Cayman Islands
Aruba
Central African Republic
Mongolia
Chad
Mozambique
Chile
Netherlands
China
Andorra
Colombia 11
Oman
Comoros
Papua New Guinea
Congo, Dem. Rep.
Poland
San Marino
Romania
Congo, Rep.
Costa Rica
Saudi Arabia
Cote d'Ivoire
Sierra Leone
Croatia
Slovenia
Cuba
South Sudan
Curacao
St. Lucia
Cyprus
Suriname
Czech Republic
Syrian Arab Republic
Denmark
Timor-Leste
Djibouti
Tunisia
Dominica
Tuvalu
Dominican Republic 17
United Kingdom
Ecuador
Vanuatu
Armenia
West Bank and Gaza
Argentina
Afghanistan
Maldives
Liberia
Malta
Liechtenstein
Mauritania
Luxembourg
Mexico
Macedonia, FYR
El Salvador
Equatorial Guinea
Malaysia
Eritrea
Mali
Estonia
Marshall Islands
Ethiopia
Mauritius
Faeroe Islands
Micronesia, Fed. Sts.
Fiji
Monaco
Finland
Montenegro
France
French Polynesia
Myanmar
Gabon
Nepal
Gambia, The
New Caledonia
Georgia
Nicaragua
Germany
Nigeria 21
Ghana 37
Norway
Greece
Pakistan 32
Greenland
Panama
Grenada
Paraguay 15
Guam
Philippines 26
Guatemala
Portugal
Guinea
Qatar
Guinea-Bissau
Russian Federation
Guyana
Samoa
Haiti
Sao Tome and Principe
Honduras
Senegal 29
Hong Kong SAR, China
Seychelles
Hungary
Singapore
Iceland
Slovak Republic
India 17
Solomon Islands
Indonesia 14
South Africa
Iran, Islamic Rep.
Spain
Iraq
St. Kitts and Nevis
Ireland
St. Martin (French part)
Isle of Man
Sudan
Israel
Swaziland
Italy
Switzerland
Jamaica
Tajikistan
Japan
Thailand
Jordan 22
Togo
Kazakhstan
Trinidad and Tobago
Kenya 36
Turkey 11
Kiribati
Turks and Caicos Islands
Korea, Dem. Rep.
Uganda
Korea, Rep.
United Arab Emirates
Kosovo
United States
Kuwait
Uzbekistan
Kyrgyz Republic
Venezuela, RB
Lao PDR
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe

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