Country name 1986 1987 1988 1989 1990
Singapore 1 1 1 1 1
Hong Kong SAR, China 2 2 1 1 1
Colombia 2 2 2 2 2
El Salvador 2 12 15 11
San Marino 3 3 3 3 2
United Kingdom 3 3 3 3 3
Belgium 4 4 4 4 4
Luxembourg 4 4 4 4 3
United States 4 4 4 4 4
Paraguay 5 5 4 3 3
Sweden 5 6 6 5 5
Jordan 6 7
Switzerland 6 6 6 5 5
Canada 6 6 6 6 6
Israel 7 7 6 6 5
Australia 7 7 7 7 7
Puerto Rico 7 6 6 6 6
Japan 7 7 7 7 6
Austria 8 8 7 7 7
France 8 7 7 7 6
Bahamas, The 8 6
Denmark 8 8 8 8 8
Barbados 9 9 9 7 7
Norway 9 9 8 9 8
Italy 10 10 10 9 9
New Zealand 13 12 13 12 13
Trinidad and Tobago 13 14 15 17 15
Finland 13 13 12 12 11
Cyprus 13 13 13 13 12
Spain 17 16 15 14 12
Portugal 19 19 18 16 16
Venezuela, RB 21 19 19 19
Ireland 21 21 21 21 20
Korea, Rep. 22 20 19 18 16
Romania 23 22 23 22 25
Greece 24 23 23 22 20
Hungary 24 23 23 22 21
Chile 27 27 26 25 25
Malaysia 30 31 31 29 26
Brazil 32 29 29 28 28
Costa Rica 34 36 36 34 34
Panama 39
Pakistan 51 45 48 48 48
Nigeria 51
Bolivia 54 54 54 3 2
Indonesia 55 55 55 56 56
Philippines 58 56 54 53 53
Bangladesh 62 60
Thailand 66 64 66 66 62
Russian Federation
Curacao
Cabo Verde
Marshall Islands
South Africa
Czech Republic 15
Burundi
Montenegro
Djibouti
Dominica 37
Seychelles
Dominican Republic
Sudan
Ecuador 10
Turks and Caicos Islands
Egypt, Arab Rep. 35 35
Micronesia, Fed. Sts.
Congo, Dem. Rep.
Namibia
Burkina Faso
Equatorial Guinea
Cuba
Eritrea
Sao Tome and Principe
Estonia 27 27
Slovak Republic
Ethiopia
St. Kitts and Nevis
Faroe Islands
American Samoa 4
Fiji 4
Algeria
Bulgaria
China
Brunei Darussalam
Mauritius 18
French Polynesia
Monaco
Gabon
Mozambique
Gambia, The
Netherlands 6 6 5 5
Georgia
Germany
Bahrain
Ghana
Cote d'Ivoire
Chad
Samoa
Greenland
Senegal
Grenada 24
Antigua and Barbuda
Guam
Solomon Islands
Guatemala 64 61 18
Angola
Guinea
St. Martin (French part)
Guinea-Bissau
Swaziland
Guyana
Tajikistan
Haiti 76 76
Togo
Honduras 65
Turkey 34 35 34
Congo, Rep.
Uganda
Central African Republic
Malta
Iceland
Mauritania
India
Mexico 29
Croatia
Moldova
Iran, Islamic Rep.
Mongolia
Iraq
Morocco 4
Botswana
Myanmar
Isle of Man
Nepal
Nicaragua
New Caledonia
Bosnia and Herzegovina
Azerbaijan
Niger
Comoros
Northern Mariana Islands 4
Cambodia
Oman
Aruba
Palau
Qatar
Papua New Guinea
Jamaica
Peru 1 2
Bhutan
Poland
Bermuda
Armenia
Kazakhstan
Cayman Islands
Kenya
Rwanda 83
Kiribati
Argentina 1
Korea, Dem. People’s Rep.
Saudi Arabia
Benin
Serbia
Uzbekistan
Sierra Leone
Belize
Sint Maarten (Dutch part)
West Bank and Gaza
Slovenia
Zambia 47
Somalia
Afghanistan
South Sudan
Lesotho
Sri Lanka
Liberia
St. Lucia
Libya
St. Vincent and the Grenadines
Liechtenstein
Suriname 5
Lithuania
Andorra
Belarus
Syrian Arab Republic 23
Macao SAR, China 1 0
Tanzania
Macedonia, FYR
Timor-Leste
Madagascar
Tonga
Malawi
Tunisia 27
United Arab Emirates
Turkmenistan
Cameroon
Tuvalu
Mali
Ukraine
Maldives 28
Albania
Kuwait 2
Uruguay
Vietnam
Vanuatu
Kyrgyz Republic
Lao PDR
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe

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