Country name 1980 1981 1982 1983
Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia 39 39 38 36
Austria 49
Azerbaijan
Bahamas, The
Bahrain 38 38
Bangladesh
Barbados 24 27 27
Belarus
Belgium 43 42 40 40
Belize
Benin
Bermuda
Bhutan
Bolivia 21 20 18 18
Bosnia and Herzegovina
Botswana
Brazil 30 28 31
Brunei Darussalam
Bulgaria
Burkina Faso
Burundi
Cabo Verde
Cambodia
Cameroon
Canada 37 37 35 34
Cayman Islands
Central African Republic
Chad
Chile 27 27 21 21
China
Colombia 39
Comoros
Congo, Dem. Rep.
Congo, Rep.
Costa Rica 25 23 21 22
Cote d'Ivoire
Croatia
Cuba
Curacao
Cyprus 37 36 35 34
Czech Republic
Denmark 41 39
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt, Arab Rep. 21 23 23 23
El Salvador 21
Equatorial Guinea 7
Eritrea
Estonia
Ethiopia
Faeroe Islands
Fiji
Finland 44 45 44 43
France 44 44 43 42
French Polynesia
Gabon
Gambia, The
Georgia
Germany
Ghana
Greece 34 34 34
Greenland
Grenada
Guam
Guatemala 17 17
Guinea
Guinea-Bissau
Guyana
Haiti 8 8 9 9
Honduras
Hong Kong SAR, China 47 46 44 43
Hungary 45 44 44 43
Iceland
India
Indonesia 13 15
Iran, Islamic Rep.
Iraq
Ireland 33
Isle of Man
Israel 39 39 39 39
Italy 42 41 41 40
Jamaica
Japan 40 40 39 39
Jordan 23
Kazakhstan
Kenya
Kiribati
Korea, Dem. Rep.
Korea, Rep. 32 31 32 33
Kosovo
Kuwait 33
Kyrgyz Republic
Lao PDR
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg 47
Macao SAR, China
Macedonia, FYR
Madagascar
Malawi
Malaysia 26 28 26 28
Maldives
Mali
Malta
Marshall Islands
Mauritania
Mauritius
Mexico
Micronesia, Fed. Sts.
Moldova
Monaco
Mongolia
Montenegro
Morocco
Mozambique
Myanmar
Namibia
Nepal
Netherlands 39 37
New Caledonia
New Zealand
Nicaragua
Niger
Nigeria 5
Northern Mariana Islands
Norway 40 40 39 38
Oman
Pakistan
Palau
Panama 21 20
Papua New Guinea
Paraguay 35 35
Peru
Philippines 16 14 15 14
Poland
Portugal 44 45 45 42
Puerto Rico 27 27 25 25
Qatar
Romania 52 51 52 52
Russian Federation
Rwanda
Samoa
San Marino 52 52 51 50
Sao Tome and Principe 33 16 20 18
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore 33 36 36 36
Sint Maarten (Dutch part)
Slovak Republic
Slovenia
Solomon Islands
Somalia
South Africa
South Sudan
Spain 42 41 40 40
Sri Lanka 19
St. Kitts and Nevis
St. Lucia
St. Martin (French part)
St. Vincent and the Grenadines
Sudan
Suriname
Swaziland
Sweden 45 45 44 44
Switzerland 47 47 46 45
Syrian Arab Republic 32
Tajikistan
Tanzania
Thailand 13 15 16 15
Timor-Leste
Togo
Tonga
Trinidad and Tobago 44 48 47 46
Tunisia 29
Turkey 36 33
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom 47 45 44 43
United States 40 39 37 37
Uruguay
Uzbekistan
Vanuatu
Venezuela, RB 31 31 32 30
Vietnam
Virgin Islands (U.S.)
West Bank and Gaza
Yemen, Rep.
Zambia
Zimbabwe

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