Country name 1986 1987 1988 1989 1990
Nigeria 4
Jordan 5 8
Bahamas, The 8 5
Thailand 9 10 9 10 12
Indonesia 9 9 9 12 12
Pakistan 10 12 14 14 14
Luxembourg 11 11 9 9 8
Panama 11
Bolivia 12 12 12 12 12
Trinidad and Tobago 12 12 13 13 14
Philippines 13 13 14 14 13
Chile 13 14 14 16 14
Norway 13 12 12 12 11
Canada 14 14 14 14 13
Australia 14 14 14 13 13
Sweden 14 14 15 15 14
Brazil 14 13 13 14 13
Belgium 15 14 17 16 16
Paraguay 15 16 14 16 15
United States 16 16 16 15 15
Denmark 16 16 16 16 16
Israel 16 16 16 15 15
Barbados 16 16 15 15 14
Spain 17 17 17 17 17
Venezuela, RB 17 18 17 16
United Kingdom 17 17 18 18 17
Greece 17 17 17 17 17
New Zealand 18 16 15 15 14
France 18 18 17 17 17
Finland 20 19 18 17 17
Ireland 20 19 19 20 19
Switzerland 21 20 19 19 18
Malaysia 21 21 22 25 28
Costa Rica 21 23 24 27 24
Austria 21 21 21 20 20
Uruguay 22 24 23 23 22
Puerto Rico 23 22 22 22 21
Colombia 23 23 24 24 25
Italy 23 23 23 23 23
Portugal 24 25 25 26 26
Cyprus 26 26 26 25 25
Korea, Rep. 26 29 31 31 30
Japan 28 27 28 28 27
El Salvador 29 21 21 22
Hungary 30 29 29 28 30
Singapore 33 35 36 35 34
Bangladesh 36 22
Romania 37 37 37 38 37
San Marino 37 36 35 34 32
Hong Kong SAR, China 45 44 40 36 33
Tanzania
Chad
Curacao
Djibouti
Nicaragua
Dominica 27
Somalia
Dominican Republic
Czech Republic 36
Ecuador 17
China
Egypt, Arab Rep. 9 10
Senegal
Comoros
St. Vincent and the Grenadines
Equatorial Guinea
Turkmenistan
Eritrea
Nepal
Estonia 32 31
Belize
Ethiopia
Congo, Rep.
Faroe Islands
Cuba
Fiji 8
Croatia
Central African Republic
Sri Lanka
Cayman Islands
Antigua and Barbuda
French Polynesia
Tonga
Gabon
Ukraine
Gambia, The
Myanmar
Georgia
New Caledonia
Germany
Benin
Ghana
Belarus
Cameroon
Papua New Guinea
Greenland
Armenia
Grenada 18
Rwanda 1
Guam
Sao Tome and Principe
Guatemala 19 24 22
Seychelles
Guinea
Slovenia
Guinea-Bissau
South Sudan
Guyana
St. Lucia
Haiti 9 9
Suriname 8
Honduras 23
Syrian Arab Republic 13
Congo, Dem. Rep.
Timor-Leste
Mexico 21
Tunisia 44
Cote d'Ivoire
Tuvalu
Morocco 50
Algeria
Moldova
Mauritius 50
Mongolia
Micronesia, Fed. Sts.
Iceland
Monaco
India
Montenegro
Cambodia
Mozambique
Iran, Islamic Rep.
Namibia
Iraq
Netherlands 11 11 11 11
Cabo Verde
Bermuda
Isle of Man
Niger
Burundi
Northern Mariana Islands 40
Burkina Faso
Oman
Jamaica
Palau
Peru 18 20
Poland
Bahrain
Bulgaria
Azerbaijan
Kazakhstan
Aruba
Kenya
Qatar
Kiribati
Russian Federation
Korea, Dem. People’s Rep.
Samoa
Brunei Darussalam
Uzbekistan
Saudi Arabia
Botswana
Serbia
Sint Maarten (Dutch part)
Sierra Leone
West Bank and Gaza
Zambia 3
Slovak Republic
Afghanistan
Solomon Islands
Lesotho
South Africa
Liberia
Argentina 18
Libya
St. Kitts and Nevis
Liechtenstein
St. Martin (French part)
Lithuania
Sudan
Bosnia and Herzegovina
Swaziland
Macao SAR, China 55 50
Angola
Macedonia, FYR
Tajikistan
Madagascar
Andorra
Malawi
Togo
Bhutan
American Samoa 45
Maldives 38
Turkey 9 9 10
Mali
Turks and Caicos Islands
Malta
Uganda
Marshall Islands
United Arab Emirates
Mauritania
Albania
Kuwait 2
Vietnam
Vanuatu
Kyrgyz Republic
Lao PDR
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe

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