Country name 1986 1987 1988 1989 1990
Afghanistan
Albania
Algeria
American Samoa 43
Andorra
Angola
Antigua and Barbuda
Argentina 39
Armenia
Aruba
Australia 36 35 35 35 34
Austria 49 49 49 49 49
Azerbaijan
Bahamas, The 22 22
Bahrain
Bangladesh 10 11
Barbados 27 27 29 31 29
Belarus
Belgium 38 37 40 40 40
Belize
Benin
Bermuda
Bhutan
Bolivia 13 13 13 34 35
Bosnia and Herzegovina
Botswana
Brazil 29 30 29 29 28
Brunei Darussalam
Bulgaria
Burkina Faso
Burundi
Cabo Verde
Cambodia
Cameroon
Canada 34 35 35 35 35
Cayman Islands
Central African Republic
Chad
Chile 25 27 30 31 30
China
Colombia 33 35 34 34 35
Comoros
Congo, Dem. Rep.
Congo, Rep.
Costa Rica 24 25 24 26 27
Cote d'Ivoire
Croatia
Cuba
Curacao
Cyprus 33 32 32 31 31
Czech Republic 54
Denmark 38 38 36 36 37
Djibouti
Dominica 34
Dominican Republic
Ecuador 30
Egypt, Arab Rep. 25 24
El Salvador 33 35 32 35
Equatorial Guinea
Eritrea
Estonia 42 42
Ethiopia
Faeroe Islands
Fiji 50
Finland 42 41 41 41 42
France 40 40 39 39 39
French Polynesia
Gabon
Gambia, The
Georgia
Germany
Ghana
Greece 34 34 33 33 33
Greenland
Grenada 30
Guam
Guatemala 16 17 34
Guinea
Guinea-Bissau
Guyana
Haiti 9 9
Honduras 15
Hong Kong SAR, China 42 42 42 40 39
Hungary 43 43 43 43 43
Iceland
India
Indonesia 8 8 8 14 15
Iran, Islamic Rep.
Iraq
Ireland 33 32 32 32 33
Isle of Man
Israel 37 37 36 36 36
Italy 37 37 37 37 37
Jamaica
Japan 39 38 39 39 39
Jordan 20 18
Kazakhstan
Kenya
Kiribati
Korea, Dem. Rep.
Korea, Rep. 36 37 38 38 39
Kuwait 33
Kyrgyz Republic
Lao PDR
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg 44 44 43 43 42
Macao SAR, China 41 37
Macedonia, FYR
Madagascar
Malawi
Malaysia 24 23 23 25 27
Maldives 19
Mali
Malta
Marshall Islands
Mauritania
Mauritius 40
Mexico 30
Micronesia, Fed. Sts.
Moldova
Monaco
Mongolia
Montenegro
Morocco 32
Mozambique
Myanmar
Namibia
Nepal
Netherlands 35 35 35 35
New Caledonia
New Zealand 37 35 34 34 33
Nicaragua
Niger
Nigeria 9
Northern Mariana Islands 47
Norway 38 38 37 36 35
Oman
Pakistan 20 22 21 21 21
Palau
Panama 19
Papua New Guinea
Paraguay 36 34 34 36 36
Peru 36 32
Philippines 14 16 17 17 16
Poland
Portugal 40 41 42 42 41
Puerto Rico 26 27 27 27 27
Qatar
Romania 51 52 51 51 49
Russian Federation
Rwanda 5
Samoa
San Marino 52 52 52 52 52
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore 36 35 36 37 40
Sint Maarten (Dutch part)
Slovak Republic
Slovenia
Solomon Islands
Somalia
South Africa
South Sudan
Spain 38 39 40 41 41
Sri Lanka
St. Kitts and Nevis
St. Lucia
St. Martin (French part)
St. Vincent and the Grenadines
Sudan
Suriname 27
Swaziland
Sweden 44 44 43 43 43
Switzerland 44 43 43 42 41
Syrian Arab Republic 30
Tajikistan
Tanzania
Thailand 12 13 13 14 15
Timor-Leste
Togo
Tonga
Trinidad and Tobago 38 37 35 34 34
Tunisia 31
Turkey 27 26 26
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom 40 40 44 44 44
United States 37 37 37 36 36
Uruguay 37 41 40 41 40
Uzbekistan
Vanuatu
Venezuela, RB 30 31 30 30
Vietnam
Virgin Islands (U.S.)
West Bank and Gaza
Yemen, Rep.
Zambia 15
Zimbabwe

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