Country name 1990 1991 1992 1993 1994
St. Lucia 0 0 0
Seychelles 0 0 0 0
Denmark 0 0 0 0
Korea, Rep. 0 0 0 0
Tuvalu 0 0 0 0
Norway 0 0 0 0
Azerbaijan 0 0
Cyprus 0 0 0 0 0
Finland 1 0 1 1 1
Kiribati 1 1 0 1 0
San Marino 0 1
Ukraine 1 1
Belarus 1 1
Czech Republic 1 1
Switzerland 2 2 2 2 2
Malta 1 1 2 2 2
Ireland 2 2 2
Germany 2 2
Slovak Republic 3 2 2
Tanzania 4 4 3 3 3
Botswana 5 5 4 3 3
Trinidad and Tobago 3 3 4
Jamaica 4 4 4
Estonia 4 4
Bolivia 3 6 9 4 4
Jordan 5 5 5 4 2
United Arab Emirates 5 5 5 4 6
Bahrain 5 4 5 5
Spain 4 5 3
Qatar 8 7 6 5 4
Romania 2 5
Guyana 7 5
Macao SAR, China 8 8 5
Turkey 7 7 7 6 5
Bulgaria 5 7 6 7 6
Mauritius 5 8 8 8 7
Congo, Dem. Rep. 17 12 8 21
Colombia 15 12 17 8 10
Syrian Arab Republic 8 8 8 8 8
Tonga 4 8 8
Iran, Islamic Rep. 12 11 11 8 8
Afghanistan 9
Costa Rica 12 11 9 10
Paraguay 10 10 10 9 9
Mexico 10 8
El Salvador 10 9 10
Algeria 8 11 10 11 11
Uruguay 11 12 12 11 12
Honduras 11 10 13 13
Venezuela, RB 13 13 13
Morocco 15 12 14 14 14
Peru 15
Gambia, The 17 15 13
Mauritania 18 17 17 15 16
Burkina Faso 17 18 16 16 16
Guatemala 17
Malawi 18 17 14 18 17
Swaziland 17 18 17 18 17
Niger 13 14 15 18
Nicaragua 18 16
Iraq 19
Bhutan 19 20
Guinea 17 18 18 19 21
Tunisia 22 21 20 19
Eritrea 29 22 18
Lesotho 25 25 24 22 21
Benin 25 21 23 24 25
Burundi 23 22 23 24
Mozambique 25 24 25 25 25
Cote d'Ivoire 27 24 27 27 26
Lao PDR 32 29 27
Madagascar 36 37 34 34 34
Congo, Rep. 39 34 34 37
United Kingdom 0
Sint Maarten (Dutch part)
Grenada
Poland
Guam
Bahamas, The 0
Georgia
Oman 13 10 10
Gabon 33
Brazil
Guinea-Bissau
Greenland
French Polynesia
Armenia
Haiti
Ghana 3 3
France
Papua New Guinea 0 0 0
Hong Kong SAR, China
Brunei Darussalam
Hungary 4
Serbia
Iceland
Somalia
India
Suriname
Indonesia
Timor-Leste
Fiji
Antigua and Barbuda 3
Faeroe Islands
Vanuatu 14 15
Ethiopia 8
Northern Mariana Islands
Isle of Man
Palau
Israel
Cambodia
Italy 1 1 1
Puerto Rico
Equatorial Guinea 25
Rwanda 11 13 15
Japan 0 0 0 0
Saudi Arabia
Egypt, Arab Rep.
Sierra Leone
Kazakhstan 1
Slovenia
Kenya
South Sudan
Ecuador 5
St. Vincent and the Grenadines
Korea, Dem. Rep.
Sweden 0 0 0
Dominican Republic
Austria
Kosovo
Australia
Kuwait 3 4
Turkmenistan
Kyrgyz Republic
Angola
West Bank and Gaza
American Samoa
Zambia 3
Vietnam
Dominica
Nigeria
Djibouti
Canada
Liberia
Pakistan
Libya
Panama
Liechtenstein
Cameroon 30 30
Lithuania
Philippines
Luxembourg
Portugal 16 16
Curacao
Cabo Verde 20 18
Macedonia, FYR
Russian Federation 2
Greece 0
Samoa
Cuba
Sao Tome and Principe
Malaysia 0
Senegal 16 16 15
Maldives
Bosnia and Herzegovina
Mali
Singapore
Croatia
Bermuda
Marshall Islands
Solomon Islands
Sri Lanka 9 9 8
South Africa 14
Belgium 17
Belize 8
Comoros 39
St. Kitts and Nevis 0
China
St. Martin (French part)
Micronesia, Fed. Sts.
Sudan
Moldova
Barbados
Monaco 6 6
Bangladesh
Mongolia
Tajikistan
Montenegro
Thailand
Chile
Togo 33 35 37 46
Chad 33 32 29
Aruba
Myanmar
Argentina
Namibia 26 24
Turks and Caicos Islands 0
Nepal 28
Uganda
Netherlands
Andorra
New Caledonia 15
United States
New Zealand 3 4 4
Uzbekistan
Central African Republic 31 32 38
Albania
Cayman Islands
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe

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