Country name 1985 1986 1987 1988 1989
United Arab Emirates 1 1 1 1 1
Qatar 1 1 1 1 1
Kuwait 1 1 1 1 1
Eritrea 2 2 2 2 2
Afghanistan 2 2 2 2 2
Timor-Leste 2 2 2 2 2
Rwanda 2 2 2 2 2
Papua New Guinea 2 2 2 2 2
Niger 2 2 2 2 2
Oman 2 2 2 2 2
Bahrain 3 3 2 2 2
Yemen, Rep. 3 3 3 3 3
Djibouti 3 3 3 3 3
Botswana 2 2 3 3 3
Malawi 3 3 3 3 3
Angola 3 3 3 3 3
Uganda 3 3 3 3 3
Saudi Arabia 3 3 3 3 3
Cote d'Ivoire 3 3 3 3 3
Tanzania 3 3 3 3 3
South Sudan 3 3 3 3 3
Ghana 3 3 3 3 3
Swaziland 3 3 3 3 3
Brunei Darussalam 3 3 3 3 3
Kenya 3 3 3 3 3
Zambia 3 3 3 3 3
Gambia, The 3 3 3 3 3
Solomon Islands 3 3 3 3 3
Maldives 3 3 3 3 3
Bhutan 3 3 3 3 3
Nigeria 3 3 3 3 3
Fiji 3 3 3 3 3
Liberia 3 3 3 3 3
Congo, Dem. Rep. 3 3 3 3 3
Senegal 3 3 3 3 3
Sudan 3 3 3 3 3
Syrian Arab Republic 3 3 3 3 3
Togo 3 3 3 3 3
Zimbabwe 3 3 3 3 3
Sierra Leone 3 3 3 3 3
Burundi 3 3 3 3 3
Nicaragua 3 3 3 3 3
Madagascar 3 3 3 3 3
Libya 3 3 3 3 3
Mauritania 3 3 3 3 3
Ethiopia 3 3 3 3 3
Cambodia 3 3 3 3 3
South Africa 3 3 3 3 3
Iran, Islamic Rep. 3 3 3 3 3
Philippines 3 3 3 3 3
French Polynesia 3 3 3 3 3
Comoros 3 3 3 3 3
Mozambique 3 3 3 3 3
Algeria 3 3 3 3 3
Morocco 3 3 3 3 3
Guatemala 3 3 3 3 3
Somalia 3 3 3 3 3
Chad 3 3 3 3 3
Honduras 3 3 3 3 3
Burkina Faso 3 3 3 3 3
Guinea-Bissau 3 3 3 3 3
Guinea 3 3 3 3 3
Namibia 3 3 3 3 3
Benin 4 4 3 3 3
Nepal 3 3 3 3 3
Jordan 4 4 4 3 3
Kiribati 4 4 4 4 4
Vanuatu 3 3 3 4 4
Samoa 3 3 3 4 4
Lao PDR 4 4 4 4 4
Cameroon 4 4 4 4 4
Micronesia, Fed. Sts. 4 4 4 4 4
Venezuela, RB 3 3 4 4 4
Bolivia 4 4 4 4 4
Malaysia 4 4 4 4 4
Dominican Republic 3 3 4 4 4
Bangladesh 4 4 4 4 4
Indonesia 4 4 4 4 4
Congo, Rep. 4 4 4 4 4
Guam 3 4 4 4 4
Turkmenistan 4 4 4 4 4
Pakistan 4 4 4 4 4
India 4 4 4 4 4
Tajikistan 4 4 4 4 4
Peru 4 4 4 4 4
Mali 4 4 4 4 4
Iraq 4 4 4 4 4
Haiti 4 4 4 4 4
Paraguay 4 4 4 4 4
Tunisia 4 4 4 4 4
Central African Republic 4 4 4 4 4
Uzbekistan 4 4 4 4 4
Belize 4 4 4 4 4
Myanmar 4 4 4 4 4
Korea, Dem. Rep. 4 4 4 4 4
Mexico 4 4 4 4 4
Colombia 4 4 4 4 4
Tonga 4 4 4 4 4
Lesotho 4 4 4 4 4
Mongolia 4 4 4 4 4
Thailand 4 4 4 4 4
Ecuador 4 4 4 4 4
Bahamas, The 4 4 4 4 4
Brazil 4 4 4 4 4
Azerbaijan 5 5 5 4 4
El Salvador 4 4 4 4 5
Turkey 4 4 4 4 4
Mauritius 4 4 4 4 5
Sao Tome and Principe 5 5 5 4 4
Suriname 4 4 5 5 5
Panama 4 4 5 5 5
Equatorial Guinea 5 5 5 5 5
Korea, Rep. 4 4 5 5 5
Egypt, Arab Rep. 5 5 5 5 5
Guyana 4 5 5 5 5
Cabo Verde 5 5 5 5 5
New Caledonia 5 5 5 5 5
Albania 5 5 5 5 5
Costa Rica 5 5 5 5 5
Kyrgyz Republic 5 5 5 5 5
Sri Lanka 5 5 5 5 5
Armenia 5 5 5 5 5
Singapore 5 5 5 5 6
Virgin Islands (U.S.) 5 5 5 6 6
Lebanon 5 5 5 6 6
Kazakhstan 6 6 6 6 6
Vietnam 5 6 6 6 6
Trinidad and Tobago 6 6 6 6 6
China 6 6 6 6 6
Bosnia and Herzegovina 6 6 6 6 6
St. Vincent and the Grenadines 6 6 6 6 6
Gabon 6 6 6 6 6
Chile 6 6 6 6 6
St. Lucia 5 6 6 7 7
Macao SAR, China 7 7 7 7 7
Macedonia, FYR 6 6 7 7 7
Seychelles 7 7 7 7 7
Curacao 7 7 7 7 7
Jamaica 7 7 7 7 7
Grenada 6 6 7 7 8
Antigua and Barbuda 6 7 7 7 8
Aruba 7 7 8 8 8
Montenegro 8 8 8 8 8
Moldova 8 8 8 8 8
Hong Kong SAR, China 8 8 8 8 9
Israel 9 9 9 9 9
Cuba 9 9 9 9 9
Argentina 9 9 9 9 9
Malta 9 9 9 9 9
Georgia 9 9 9 9 9
Puerto Rico 9 9 9 9 10
Poland 9 9 9 10 10
Slovak Republic 9 9 9 10 10
Russian Federation 10 10 10 10 10
Cyprus 10 10 10 10 10
Romania 10 10 10 10 10
Barbados 11 10 10 10 10
Slovenia 10 10 10 10 10
Belarus 10 10 10 10 10
Iceland 10 10 10 10 11
Lithuania 10 10 10 11 11
Australia 10 10 11 11 11
New Zealand 10 10 11 11 11
Croatia 10 10 10 11 11
Canada 10 10 11 11 11
Japan 10 10 11 11 12
Ireland 11 11 11 11 11
Uruguay 11 11 11 11 11
Estonia 11 11 11 11 11
Ukraine 11 11 11 12 12
Latvia 12 12 12 12 12
Czech Republic 12 12 12 12 12
Bulgaria 11 12 12 12 13
United States 12 12 12 12 12
Netherlands 12 12 12 12 13
Hungary 12 12 12 13 13
Spain 12 12 13 13 13
Finland 12 13 13 13 13
Portugal 12 12 13 13 13
Luxembourg 13 13 13 13 13
Greece 13 13 13 13 14
France 13 13 13 14 14
Italy 13 13 14 14 15
Switzerland 14 14 14 14 14
Belgium 14 14 14 14 15
Austria 14 14 14 15 15
Germany 14 14 14 15 15
United Kingdom 15 15 15 15 16
Denmark 15 15 15 16 16
Norway 16 16 16 16 16
Sweden 17 17 18 18 18
San Marino
Cayman Islands
Sint Maarten (Dutch part)
Isle of Man
West Bank and Gaza
Andorra
Faeroe Islands
Marshall Islands
Greenland
Serbia
St. Kitts and Nevis
Dominica
Tuvalu
Kosovo
Palau
Liechtenstein
Turks and Caicos Islands
St. Martin (French part)
Bermuda
Monaco
Northern Mariana Islands
American Samoa

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