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

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