Country name 1980 1981 1982 1983
Afghanistan
Albania
Algeria
American Samoa
Andorra
Angola
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia 16 17 16 15
Austria 22
Azerbaijan
Bahamas, The
Bahrain 5 5
Bangladesh
Barbados 19 19 19
Belarus
Belgium 18 17 16 16
Belize
Benin
Bermuda
Bhutan
Bolivia 19 18 16 16
Bosnia and Herzegovina
Botswana
Brazil 13 13 14
Brunei Darussalam
Bulgaria
Burkina Faso
Burundi
Cabo Verde
Cambodia
Cameroon
Canada 16 15 14 14
Cayman Islands
Central African Republic
Chad
Chile 16 15 12 12
China
Colombia 26
Comoros
Congo, Dem. Rep.
Congo, Rep.
Costa Rica 20 20 20 22
Cote d'Ivoire
Croatia
Cuba
Curacao
Cyprus 29 29 28 28
Czech Republic
Denmark 16 16
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt, Arab Rep. 13 13 13 14
El Salvador 21
Equatorial Guinea 1
Eritrea
Estonia
Ethiopia
Faeroe Islands
Fiji
Finland 23 23 22 21
France 22 21 21 20
French Polynesia
Gabon
Gambia, The
Georgia
Germany
Ghana
Greece 18 18 17
Greenland
Grenada
Guam
Guatemala 28 28
Guinea
Guinea-Bissau
Guyana
Haiti 8 8 9 9
Honduras
Hong Kong SAR, China 56 53 52 49
Hungary 36 32 32 31
Iceland
India
Indonesia 13 15
Iran, Islamic Rep.
Iraq
Ireland 19
Isle of Man
Israel 16 15 15 15
Italy 28 28 27 26
Jamaica
Japan 28 29 28 28
Jordan 9
Kazakhstan
Kenya
Kiribati
Korea, Dem. Rep.
Korea, Rep. 24 22 22 23
Kosovo
Kuwait 2
Kyrgyz Republic
Lao PDR
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg 12
Macao SAR, China
Macedonia, FYR
Madagascar
Malawi
Malaysia 20 21 21 23
Maldives
Mali
Malta
Marshall Islands
Mauritania
Mauritius
Mexico
Micronesia, Fed. Sts.
Moldova
Monaco
Mongolia
Montenegro
Morocco
Mozambique
Myanmar
Namibia
Nepal
Netherlands 13 12
New Caledonia
New Zealand
Nicaragua
Niger
Nigeria 7
Northern Mariana Islands
Norway 13 13 13 12
Oman
Pakistan
Palau
Panama 12 11
Papua New Guinea
Paraguay 13 16
Peru
Philippines 15 14 13 13
Poland
Portugal 25 25 26 25
Puerto Rico 24 25 25 25
Qatar
Romania 34 34 35 35
Russian Federation
Rwanda
Samoa
San Marino 44 43 41 40
Sao Tome and Principe 8 3 4 6
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore 40 40 38 36
Sint Maarten (Dutch part)
Slovak Republic
Slovenia
Solomon Islands
Somalia
South Africa
South Sudan
Spain 21 20 19 18
Sri Lanka 18
St. Kitts and Nevis
St. Lucia
St. Martin (French part)
St. Vincent and the Grenadines
Sudan
Suriname
Swaziland
Sweden 16 15 15 14
Switzerland 23 23 22 21
Syrian Arab Republic 11
Tajikistan
Tanzania
Thailand 8 10 11 11
Timor-Leste
Togo
Tonga
Trinidad and Tobago 21 21 22 20
Tunisia 48
Turkey 31 28
Turkmenistan
Turks and Caicos Islands
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom 23 21 20 19
United States 19 18 17 17
Uruguay
Uzbekistan
Vanuatu
Venezuela, RB 18 17 17 16
Vietnam
Virgin Islands (U.S.)
West Bank and Gaza
Yemen, Rep.
Zambia
Zimbabwe

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