Country name 1986 1987 1988 1989 1990
Malaysia 0 0 0
Japan 0 0 0 0 0
Norway 0 0 0 0 0
Papua New Guinea 0 0 0 0
Sweden 0 0 0 0
Seychelles 0 0 0 0
Denmark 0 0 0 0 0
Korea, Rep. 0 0 0 0 0
Greece 0 0 0 0
Finland 0 0 0 0
Cyprus 0 0 0 0 0
Italy 1 1 1 1 1
Bulgaria 1 1 1 2 2
Switzerland 2 2 2 2 2
Philippines 2 2 2 2
Malta 2 2 2 2 1
Kiribati 2 1 2 1 1
Spain 4 5 2 4 3
Hungary 3 3 3 2 2
New Zealand 3 3 3 3 3
Jamaica 3 3 3 3
Trinidad and Tobago 3
India 4 4
Dominica 5
Botswana 5 5 5 5 5
Algeria 6 5 5 5 5
Qatar 6 8 5 4 4
United Arab Emirates 5 6 5 5 5
Ecuador 6 6
Tanzania 1 5 6 5 5
Jordan 6 6 5 5
Syrian Arab Republic 7 6 6 6 7
Uruguay 8 8 7 7 8
Turkey 8 8 8 8 7
Paraguay 8 8 8 8 7
Venezuela, RB 8 8
Mauritius 6 9 8 8 5
El Salvador 8 8 9
Iran, Islamic Rep. 9 9 9 8
Bahrain 9 9 9 8
Panama 10 9 9 8
Costa Rica 8 9 9 10
Rwanda 12 13 10 10 11
Oman 9 9 10 10 9
Colombia 17 12 12 12 9
Ethiopia 11 13 11
Swaziland 13 13 13 13 13
Belgium 15 14 15
New Caledonia 15 15 15 15 12
Senegal 17 15 16 16
Nicaragua 13 14 15
Morocco 18 17 15 14 12
Burkina Faso 16 17 18 18
Iraq 19 19 17 16
Burundi 18 17 18 24 22
Malawi 16 18 19 18 19
Lesotho 22 21 20 20 19
Suriname 20 21 20
Tunisia 19 20 21 20 19
Congo, Dem. Rep. 21
Mauritania 20 22 21 21 21
Cabo Verde 26 26 22 17
Cote d'Ivoire 28 27 25 26 26
Benin 28 27 27 27 25
Guinea 31 27 27 24 21
Cameroon 28 28 28 27
Congo, Rep. 29 31 30 34 38
Mozambique 26 26 30 28 27
Mali 28 30
Gabon 35 31 33
Madagascar 31 33 33
Togo 36 36 32 38 35
Central African Republic 29 35 34 34 32
Chad 35 34 35
Sao Tome and Principe 35
Guinea-Bissau 42 43
Singapore
Germany
Portugal 12
Guam
Guatemala
Cuba
Grenada
Pakistan
Chile
Guyana 5
Myanmar
Haiti 9
Nigeria
Honduras
Equatorial Guinea
Hong Kong SAR, China
Russian Federation
Canada
Greenland
Iceland
Solomon Islands 7
Djibouti
St. Martin (French part)
Indonesia
Curacao
Argentina
Nepal
Czech Republic
Croatia
Ireland
Andorra
Isle of Man
Fiji 2
Israel
Belarus
Brunei Darussalam 6
Barbados
Brazil
Samoa
Antigua and Barbuda
Bosnia and Herzegovina
Bangladesh
Kazakhstan
Slovak Republic
Kenya
South Africa
Bolivia 3
St. Kitts and Nevis
Bahamas, The
Sudan
Korea, Dem. Rep.
Bhutan
Ghana
Uzbekistan
France
Uganda 14
Namibia
Bermuda
Netherlands
Armenia
Belize
Afghanistan
Niger 15 15 13 14
Estonia
Northern Mariana Islands
Liberia
Cambodia
Libya
Palau
Liechtenstein
American Samoa
Lithuania
Peru
Luxembourg
Poland
Macao SAR, China 6
Puerto Rico
Macedonia, FYR
Romania 1
Georgia
Comoros 33 36
Turks and Caicos Islands
San Marino
China
Saudi Arabia
Maldives
Serbia
Gambia, The 15 15 16
Sierra Leone
French Polynesia
Sint Maarten (Dutch part)
Marshall Islands
Slovenia
Thailand
Somalia
Tajikistan
South Sudan
Dominican Republic
Sri Lanka 7 8 6 7
Aruba
St. Lucia 0
Egypt, Arab Rep. 1
St. Vincent and the Grenadines
Monaco
Faeroe Islands
Mongolia
Albania
Montenegro
Azerbaijan
Eritrea
Austria
Tonga 5 4
Timor-Leste
Cayman Islands
Mexico
Australia
Micronesia, Fed. Sts.
Moldova
Turkmenistan
Angola
Tuvalu 0
United Kingdom
Ukraine
West Bank and Gaza
Zambia 2
United States
Kuwait 5 5
Vietnam
Vanuatu
Kyrgyz Republic
Lao PDR
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe

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