Country name 1985 1986 1987 1988 1989
Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia 27 27 26 26 26
Austria 38 38 38 37 37
Azerbaijan 29 29 29 29 29
Bahamas, The 15 14
Bahrain
Bangladesh 12 13 15
Barbados 23 22 22 23 23
Belarus 37 38 39
Belgium 30 29 29 31 31
Belize
Benin
Bermuda
Bhutan
Bolivia 16 13 13 13 25
Bosnia and Herzegovina
Botswana 11
Brazil 22 24 24 23 24
Brunei Darussalam
Bulgaria 45 45 46 46 45
Burkina Faso
Burundi
Cabo Verde
Cambodia
Cameroon 7
Canada 25 25 25 25 25
Cayman Islands
Central African Republic
Chad
Chile 20 21 23 25 27
China 21 22 22 22 22
Colombia 29 29 30 30 30
Comoros
Congo, Dem. Rep.
Congo, Rep.
Costa Rica 21 23 25 24 26
Cote d'Ivoire
Croatia
Cuba
Curacao
Cyprus 31 30 30 30 29
Czech Republic
Denmark 28 28 28 27 27
Djibouti
Dominica 32
Dominican Republic
Ecuador 25 24
Egypt, Arab Rep. 21
El Salvador 21 31 29 27
Equatorial Guinea
Eritrea
Estonia 37
Ethiopia
Faeroe Islands
Fiji
Finland 32 32 31 30 30
France 32 31 30 30 30
French Polynesia
Gabon
Gambia, The
Georgia
Germany
Ghana
Greece 27 28 28 27 28
Greenland
Grenada 25
Guam
Guatemala 17 18
Guinea
Guinea-Bissau
Guyana
Haiti 9
Honduras
Hong Kong SAR, China 44 43 43 41 39
Hungary 37 37 36 36 35
Iceland
India
Indonesia 13 8 8 8 13
Iran, Islamic Rep.
Iraq
Ireland 27 28 28 29 28
Isle of Man
Israel 29 29 29 28 27
Italy 33 33 32 32 32
Jamaica
Japan 35 35 34 34 34
Jordan 19 17
Kazakhstan
Kenya
Kiribati
Korea, Dem. Rep.
Korea, Rep. 31 32 34 35 35
Kosovo
Kuwait 26
Kyrgyz Republic 25 25 24 25
Lao PDR
Latvia
Lebanon
Lesotho
Liberia
Libya 39 30
Liechtenstein
Lithuania
Luxembourg 34 33 33 32 31
Macao SAR, China 47
Macedonia, FYR
Madagascar
Malawi
Malaysia 24 23 22 23 25
Maldives
Mali
Malta
Marshall Islands
Mauritania
Mauritius
Mexico 27
Micronesia, Fed. Sts.
Moldova 27 27 28 28 29
Monaco
Mongolia
Montenegro
Morocco
Mozambique
Myanmar 11 11 11 11 11
Namibia
Nepal
Netherlands 28 26 26 26
New Caledonia
New Zealand 29 27 26 25
Nicaragua
Niger
Nigeria 8
Northern Mariana Islands 4
Norway 27 27 27 26 25
Oman
Pakistan 20 19 21 20 20
Palau
Panama 17 17 17 14 14
Papua New Guinea
Paraguay 29 27 26 25 28
Peru 30 29 26
Philippines 14 13 15 16 16
Poland 38 38 38 38 38
Portugal 34 34 35 35 35
Puerto Rico 24 25 25 25 25
Qatar
Romania 45 45 45 45 45
Russian Federation
Rwanda 3
Samoa
San Marino 47 46 46 45 45
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore 35 35 35 36 36
Sint Maarten (Dutch part)
Slovak Republic
Slovenia
Solomon Islands
Somalia
South Africa
South Sudan
Spain 32 32 32 33 33
Sri Lanka 19
St. Kitts and Nevis
St. Lucia
St. Martin (French part)
St. Vincent and the Grenadines
Sudan
Suriname 20 19 18 15 17
Swaziland
Sweden 30 30 30 30 30
Switzerland 36 35 34 34 33
Syrian Arab Republic 27
Tajikistan
Tanzania
Thailand 11 12 11 12
Timor-Leste
Togo
Tonga
Trinidad and Tobago 33 29 29 28 27
Tunisia 34
Turkey 20 21 21
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Ukraine 8 8 9
United Arab Emirates
United Kingdom 31 30 30 33 33
United States 28 28 27 27 27
Uruguay 31 35 34 34
Uzbekistan
Vanuatu
Venezuela, RB 25 26 28 26
Vietnam
Virgin Islands (U.S.)
West Bank and Gaza
Yemen, Rep.
Zambia
Zimbabwe

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