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
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
Portugal 12
Guam
Guatemala
Slovak Republic
Fiji 2
Pakistan
Mongolia
Grenada
New Caledonia
Greenland
Guyana 5
Myanmar
Haiti 9
Nigeria
Honduras
Dominican Republic
Hong Kong SAR, China
Russian Federation
Djibouti
Bangladesh
Iceland
South Africa
Argentina
Thailand
Indonesia
Cuba
Czech Republic
Nepal
Cayman Islands
Croatia
Ireland
Andorra
Isle of Man
French Polynesia
Israel
Belarus
Brunei Darussalam 6
Barbados
Brazil
Samoa
Antigua and Barbuda
China
Bosnia and Herzegovina
Singapore
Kazakhstan
Solomon Islands 7
Kenya
Chile
Bolivia 3
Ghana
Korea, Dem. People’s Rep.
France
Bhutan
Montenegro
Uzbekistan
Gambia, The 15 15 16
Uganda 14
Namibia
Bermuda
Netherlands
Armenia
Belize
Afghanistan
Niger 15 15 13 14
Eritrea
Northern Mariana Islands
Liberia
Canada
Libya
Palau
Liechtenstein
American Samoa
Lithuania
Peru
Luxembourg
Poland
Macao SAR, China 6
Puerto Rico
Macedonia, FYR
Romania 1
Germany
Comoros 33 36
Turks and Caicos Islands
San Marino
Cambodia
Saudi Arabia
Maldives
Serbia
Georgia
Sierra Leone
Faroe Islands
Sint Maarten (Dutch part)
Marshall Islands
Slovenia
Sudan
Somalia
St. Kitts and Nevis
South Sudan
St. Martin (French part)
Sri Lanka 7 8 6 7
Bahamas, The
St. Lucia 0
Tajikistan
St. Vincent and the Grenadines
Tonga 5 4
Egypt, Arab Rep. 1
Equatorial Guinea
Albania
Estonia
Azerbaijan
Moldova
Austria
Monaco
Timor-Leste
Curacao
Aruba
Australia
Mexico
Micronesia, Fed. Sts.
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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