Country name 1986 1987 1988 1989 1990
Afghanistan
Albania
Algeria 9 8 8 8 8
American Samoa
Andorra
Angola
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia
Austria
Azerbaijan
Bahamas, The
Bahrain 8 8 9 9
Bangladesh
Barbados
Belarus
Belgium 18 17 18
Belize
Benin 26 26 26 26 25
Bermuda
Bhutan
Bolivia 3
Bosnia and Herzegovina
Botswana 5 5 5 5 5
Brazil
Brunei Darussalam 11
Bulgaria 3 3 3 4 5
Burkina Faso 15 16 17 17
Burundi 18 18 19 25 23
Cabo Verde 29 29 26 20
Cambodia
Cameroon 30 30 30 30
Canada
Cayman Islands
Central African Republic 30 35 35 34 31
Chad 31 33 33
Chile
China
Colombia 17 13 13 13 15
Comoros 32 37
Congo, Dem. Rep. 21
Congo, Rep. 31 32 32 35 39
Costa Rica 11 12 12 12
Cote d'Ivoire 29 27 26 27 27
Croatia
Cuba
Curacao
Cyprus 0 0 0 0 0
Czech Republic
Denmark 0 0 0 0 0
Djibouti
Dominica 6
Dominican Republic
Ecuador 7 7
Egypt, Arab Rep. 2
El Salvador 9 9 10
Equatorial Guinea
Eritrea
Estonia
Ethiopia 8 10 8
Faeroe Islands
Fiji 3
Finland 1 1 1 1
France
French Polynesia
Gabon 37 31 34
Gambia, The 17 17 19
Georgia
Germany
Ghana
Greece 0 0 0 0
Greenland
Grenada
Guam
Guatemala
Guinea 25 24 23 19 17
Guinea-Bissau 40 42
Guyana 7
Haiti 9
Honduras
Hong Kong SAR, China
Hungary 4 4 4 4 4
Iceland
India 4 4
Indonesia
Iran, Islamic Rep. 13 12 12 12
Iraq 22 23 23 22
Ireland
Isle of Man
Israel
Italy 1 1 1 1 1
Jamaica 4 4 3 4
Japan 0 0 0 0 0
Jordan 6 7 6 5
Kazakhstan
Kenya
Kiribati 2 2 2 1 1
Korea, Dem. Rep.
Korea, Rep. 0 0 0 0 0
Kuwait 5 5
Kyrgyz Republic
Lao PDR
Latvia
Lebanon
Lesotho 26 26 25 25 25
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Macao SAR, China 8
Macedonia, FYR
Madagascar 35 36 36
Malawi 15 17 18 18 18
Malaysia 0 0 0
Maldives
Mali 28 29
Malta 3 3 3 2 1
Marshall Islands
Mauritania 17 18 18 18 18
Mauritius 7 10 8 8 5
Mexico
Micronesia, Fed. Sts.
Moldova
Monaco
Mongolia
Montenegro
Morocco 21 21 18 17 15
Mozambique 25 24 27 27 25
Myanmar
Namibia
Nepal
Netherlands
New Caledonia 18 18 18 18 15
New Zealand 4 4 4 3 3
Nicaragua 14 15 16
Niger 15 15 13 13
Nigeria
Northern Mariana Islands
Norway 0 0 0 0 0
Oman 13 13 15 13 13
Pakistan
Palau
Panama 13 13 13 12
Papua New Guinea 0 0 0 0
Paraguay 11 10 10 10 10
Peru
Philippines 2 2 2 2
Poland
Portugal 16
Puerto Rico
Qatar 10 12 9 8 8
Romania 2
Russian Federation
Rwanda 13 14 11 11 11
Samoa
San Marino
Sao Tome and Principe 35
Saudi Arabia
Senegal 16 15 16 16
Serbia
Seychelles 0 0 0 0
Sierra Leone
Singapore
Sint Maarten (Dutch part)
Slovak Republic
Slovenia
Solomon Islands 8
Somalia
South Africa
South Sudan
Spain 6 7 4 3 4
Sri Lanka 9 10 8 9
St. Kitts and Nevis
St. Lucia 0
St. Martin (French part)
St. Vincent and the Grenadines
Sudan
Suriname 26 26 26
Swaziland 17 17 17 17 17
Sweden 0 0 0 0
Switzerland 2 2 2 2 2
Syrian Arab Republic 8 8 8 8 8
Tajikistan
Tanzania 1 4 5 4 4
Thailand
Timor-Leste
Togo 34 34 30 36 33
Tonga 6 4
Trinidad and Tobago 4
Tunisia 21 24 24 22 22
Turkey 8 8 8 8 7
Turkmenistan
Turks and Caicos Islands
Tuvalu 0
Uganda 14
Ukraine
United Arab Emirates 6 7 6 5 5
United Kingdom
United States
Uruguay 12 11 11 10 11
Uzbekistan
Vanuatu
Venezuela, RB 11 12
Vietnam
Virgin Islands (U.S.)
West Bank and Gaza
Yemen, Rep.
Zambia 2
Zimbabwe

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