Country name 1990 1991 1992 1993 1994
United Arab Emirates 1 1 1 1 1
Qatar 1 1 1 1 1
Kuwait 1 2 2 2 2
Eritrea 2 2 2 2 2
Afghanistan 2 2 2 2 2
Timor-Leste 2 2 2 2 2
West Bank and Gaza 2 2 2 2 2
Bahrain 2 2 2 2 2
Rwanda 2 2 2 2 2
Oman 2 2 2 2 2
Papua New Guinea 2 2 2 2 2
Niger 2 2 2 2 2
Djibouti 3 3 3 3 3
Angola 3 3 3 3 3
Yemen, Rep. 3 3 3 3 3
Botswana 3 3 3 3 3
Brunei Darussalam 3 3 3 3 3
Malawi 3 3 3 3 3
Uganda 3 3 3 3 3
Saudi Arabia 3 3 3 3 3
Swaziland 3 3 3 3 3
Kenya 3 3 3 3 3
Tanzania 3 3 3 3 3
Cote d'Ivoire 3 3 3 3 3
Gambia, The 3 3 3 3 3
South Sudan 3 3 3 3 3
Ghana 3 3 3 3 3
Solomon Islands 3 3 3 3 3
Zambia 3 3 3 3 3
Nigeria 3 3 3 3 3
Maldives 3 3 3 3 3
Congo, Dem. Rep. 3 3 3 3 3
Fiji 3 3 3 3 3
Sudan 3 3 3 3 3
Sierra Leone 3 3 3 3 3
Liberia 3 3 3 3 3
Bhutan 3 3 3 3 3
Togo 3 3 3 3 3
Senegal 3 3 3 3 3
Zimbabwe 3 3 3 3 3
Burundi 3 3 3 3 3
Syrian Arab Republic 3 3 3 3 3
Madagascar 3 3 3 3 3
Mauritania 3 3 3 3 3
Philippines 3 3 3 3 3
Ethiopia 3 3 3 3 3
Nicaragua 3 3 3 3 3
Comoros 3 3 3 3 3
South Africa 3 3 3 3 3
Algeria 3 3 3 3 3
Somalia 3 3 3 3 3
Libya 3 3 3 3 3
Cambodia 3 3 3 3 3
Chad 3 3 3 3 3
Mozambique 3 3 3 3 3
Burkina Faso 3 3 3 3 3
Jordan 3 3 3 3 3
Iran, Islamic Rep. 3 3 3 4 4
Benin 3 3 3 3 3
Guinea-Bissau 3 3 3 3 3
Guatemala 3 3 3 4 4
French Polynesia 3 3 3 3 4
Namibia 3 3 3 3 3
Honduras 3 3 3 4 4
Morocco 3 4 4 4 4
Guinea 3 3 4 4 4
Nepal 3 4 4 4 4
Kiribati 4 4 4 4 4
Cameroon 4 4 3 3 3
Lao PDR 4 4 4 4 4
Micronesia, Fed. Sts. 4 4 4 4 4
Vanuatu 4 4 4 4 4
Malaysia 4 4 4 4 4
Bolivia 4 4 4 4 4
Congo, Rep. 4 4 4 4 4
Venezuela, RB 4 4 4 4 4
Bangladesh 4 4 4 4 4
Turkmenistan 4 4 4 4 4
Indonesia 4 4 4 4 4
Pakistan 4 4 4 4 4
Tajikistan 4 4 4 4 4
Iraq 4 4 4 4 4
Samoa 4 4 4 4 4
India 4 4 4 4 4
Dominican Republic 4 4 4 4 4
Haiti 4 4 4 4 4
Guam 4 4 4 4 5
Peru 4 4 4 4 4
Uzbekistan 4 4 4 4 4
Mali 4 4 4 4 4
Central African Republic 4 4 4 4 4
Paraguay 4 4 4 4 4
Mongolia 4 4 4 4 4
Belize 4 4 4 4 4
Azerbaijan 4 4 4 4 5
Myanmar 4 4 4 4 4
Lesotho 4 4 4 4 4
Tunisia 4 4 5 5 5
Colombia 4 4 4 4 4
Mexico 4 4 4 4 4
Bahamas, The 4 4 4 4 5
Ecuador 4 4 4 5 5
Sao Tome and Principe 4 4 4 4 4
Korea, Dem. Rep. 4 4 5 5 5
Brazil 4 5 5 5 5
Equatorial Guinea 4 4 4 4 4
Tonga 4 5 5 5 5
Thailand 4 5 5 5 5
Turkey 5 5 5 5 5
El Salvador 5 5 5 5 5
Mauritius 5 5 5 5 5
Suriname 5 5 5 5 5
Panama 5 5 5 5 5
Egypt, Arab Rep. 5 5 5 5 5
Cabo Verde 5 5 5 5 5
Korea, Rep. 5 5 5 5 6
Costa Rica 5 5 5 5 5
New Caledonia 5 5 5 5 5
Kyrgyz Republic 5 5 5 5 5
Guyana 5 5 5 5 5
Albania 5 5 5 5 6
Sri Lanka 5 6 6 6 6
Singapore 6 6 6 6 6
Armenia 6 6 7 7 8
Vietnam 6 6 6 6 6
Trinidad and Tobago 6 6 6 6 6
China 6 6 6 6 6
Kazakhstan 6 6 6 7 7
Lebanon 6 6 6 6 6
Gabon 6 6 6 6 6
Virgin Islands (U.S.) 6 6 6 7 7
Chile 6 6 6 6 6
Bosnia and Herzegovina 6 6 7 7 8
St. Vincent and the Grenadines 6 6 6 6 7
Macao SAR, China 7 7 7 7 7
Seychelles 7 7 7 7 7
Jamaica 7 7 7 7 7
Macedonia, FYR 7 8 8 8 8
St. Lucia 7 8 8 8 8
Curacao 8 8 8 8 8
Aruba 8 8 7 7 7
Montenegro 8 8 8 9 9
Grenada 8 8 8 8 8
Antigua and Barbuda 8 8 8 9 9
Moldova 8 8 9 9 9
Hong Kong SAR, China 9 9 9 9 9
Cuba 9 9 9 9 9
Israel 9 9 9 9 10
Argentina 9 9 9 9 9
Malta 9 9 9 10 10
Georgia 9 10 10 10 11
Serbia 9 10 10 10 11
Puerto Rico 10 10 10 10 10
Cyprus 10 10 10 10 10
Barbados 10 10 10 10 11
Poland 10 10 11 11 11
Russian Federation 10 11 11 11 12
Slovak Republic 10 10 11 11 11
Romania 11 11 11 11 12
Belarus 11 11 11 12 12
Iceland 11 11 11 11 11
Slovenia 11 11 11 12 12
Lithuania 11 11 11 12 12
New Zealand 11 11 11 11 11
Australia 11 11 11 12 12
Canada 11 11 12 12 12
Ireland 11 11 11 11 11
Croatia 12 12 12 13 13
Uruguay 12 12 12 12 12
Estonia 12 12 12 13 13
Latvia 12 12 12 13 13
Japan 12 12 13 13 14
Ukraine 12 12 13 13 13
United States 12 13 13 13 13
Czech Republic 13 13 13 13 13
Netherlands 13 13 13 13 13
Bulgaria 13 14 14 14 15
Finland 13 14 14 14 14
Luxembourg 13 13 14 14 14
Hungary 14 14 14 14 14
Portugal 14 14 14 14 15
Spain 14 14 14 15 15
Greece 14 14 14 15 15
France 14 14 15 15 15
Switzerland 15 15 15 15 15
Italy 15 15 16 16 16
Germany 15 15 15 15 15
Belgium 15 15 15 16 16
Austria 15 15 15 15 15
Denmark 16 16 16 15 15
United Kingdom 16 16 16 16 16
Norway 16 16 16 16 16
Sweden 18 18 18 18 18
Andorra
St. Kitts and Nevis
Greenland
Sint Maarten (Dutch part)
San Marino
Kosovo
St. Martin (French part)
Turks and Caicos Islands
Liechtenstein
Tuvalu
Isle of Man
Marshall Islands
Northern Mariana Islands
Bermuda
Faeroe Islands
Palau
Cayman Islands
Monaco
Dominica
American Samoa

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