Country name 1980 1981 1982 1983 1984
Qatar 3 3 3 3 3
Kuwait 4 4 4 3 3
United Arab Emirates 4 4 4 4 4
Bahrain 4 4 4 4 4
Brunei Darussalam 5 4 4 4 4
Dominica 5 5 5 5 5
Hong Kong SAR, China 5 5 5 5 5
Guam 5 5 5 5 5
Costa Rica 5 5 5 5 5
Virgin Islands (U.S.) 5 5 5 5 5
Singapore 5 5 5 5 5
Panama 6 5 5 5 5
Venezuela, RB 6 6 5 5 5
Malaysia 6 6 6 5 5
Bahamas, The 6 6 6 6 6
Cuba 6 6 6 6 6
Tonga 6 6 6 6 6
Albania 6 6 6 6 6
Japan 6 6 6 6 6
Korea, Rep. 7 6 6 6 6
Sri Lanka 6 6 6 6 6
Korea, Dem. Rep. 6 6 6 6 6
Armenia 6 6 6 7 7
Liechtenstein 7 6 6 6 7
China 6 6 7 7 7
New Caledonia 7 6 6 6 6
Belize 7 6 6 6 6
Antigua and Barbuda 6 6 7 7 7
Aruba 6 6 7 7 7
St. Lucia 7 6 6 6 6
Bosnia and Herzegovina 6 6 6 6 6
Puerto Rico 6 7 7 7 7
Israel 7 7 7 7 7
French Polynesia 7 7 6 6 6
Chile 7 7 6 6 6
Syrian Arab Republic 7 7 6 6 6
Mexico 7 7 6 6 6
Jordan 7 7 6 6 6
Jamaica 7 7 7 7 7
Mauritius 7 7 7 7 7
Paraguay 7 7 7 7 7
Colombia 7 7 7 7 6
Azerbaijan 8 7 7 7 7
Montenegro 7 7 7 7 7
Canada 7 7 7 7 7
Vietnam 7 7 7 7 7
Fiji 7 7 7 7 7
Thailand 7 7 7 7 6
Libya 8 7 7 7 6
Macao SAR, China 7 7 7 7 7
Iceland 7 7 7 7 7
Seychelles 7 7 7 7 8
Uzbekistan 8 7 7 8 8
Lebanon 7 7 7 7 7
Suriname 7 7 7 7 7
Australia 7 7 8 7 7
Micronesia, Fed. Sts. 7 7 7 7 7
St. Vincent and the Grenadines 8 7 7 7 7
Macedonia, FYR 7 7 8 8 8
Greenland 8 8 8 8 8
Cyprus 8 8 7 7 7
Trinidad and Tobago 8 8 8 8 8
Dominican Republic 8 8 8 7 7
Spain 8 8 8 8 8
Saudi Arabia 8 8 7 7 7
New Zealand 9 8 8 8 8
Kazakhstan 8 8 8 8 8
Philippines 8 8 8 8 7
Tunisia 8 8 8 7 7
Netherlands 8 8 8 8 8
Kosovo 8 8 8 8
Ecuador 9 9 8 8 8
Brazil 9 9 8 8 8
United States 9 9 9 9 9
Argentina 9 9 9 8 8
Botswana 9 9 8 8 8
Samoa 9 9 9 8 8
Greece 9 9 9 9 9
Grenada 9 9 9 9 9
Guyana 9 9 9 9 9
Switzerland 9 9 9 9 9
Finland 9 9 9 9 9
Georgia 9 9 9 9 9
Poland 10 9 9 10 10
Oman 10 9 9 8 8
Ireland 10 10 9 9 9
Peru 10 10 9 9 9
Kyrgyz Republic 10 10 9 9 9
Belarus 10 10 10 10 11
Malta 10 10 9 10 9
Turkmenistan 10 10 10 9 9
Italy 10 10 10 10 10
Portugal 10 10 9 10 10
Iraq 10 10 10 10 9
Honduras 10 10 9 9 9
Slovenia 10 10 10 11 10
Indonesia 10 10 10 9 9
Slovak Republic 10 10 10 10 10
Uruguay 10 10 10 10 10
Vanuatu 10 10 10 9 9
Romania 10 10 10 10 10
Zimbabwe 10 10 10 9 9
France 10 10 10 10 10
Norway 10 10 10 10 10
St. Kitts and Nevis 11 10 11 11 11
Tajikistan 10 10 10 10 10
Barbados 10 10 10 10 10
South Africa 11 10 10 10 9
Lithuania 11 10 10 11 11
Cabo Verde 11 10 10 10 10
Solomon Islands 11 10 10 11 11
Algeria 11 10 10 9 8
Morocco 11 11 10 10 9
Nicaragua 11 11 10 10 10
Sao Tome and Principe 11 11 11 11 11
Turkey 11 11 11 10 10
Russian Federation 11 11 11 11 12
Namibia 11 11 11 10 10
Moldova 11 11 11 11 11
Sweden 11 11 11 11 11
Denmark 11 11 11 11 11
Bulgaria 11 11 11 11 11
Kenya 11 11 11 11 10
Luxembourg 11 11 11 11 11
Croatia 11 11 11 12 12
Guatemala 12 11 11 11 10
Ukraine 11 11 11 12 12
Belgium 12 11 11 12 11
Kiribati 12 12 11 11 11
Egypt, Arab Rep. 12 12 11 11 10
El Salvador 12 12 11 11 11
United Kingdom 12 12 12 12 11
Pakistan 12 12 12 11 11
Papua New Guinea 12 12 11 11 11
Djibouti 12 12 12 12 11
India 12 12 12 12 12
Germany 12 12 12 12 12
Congo, Rep. 12 12 12 12 12
Austria 12 12 12 12 12
Estonia 12 12 12 12 13
Myanmar 13 12 12 12 12
Mauritania 13 13 12 12 12
Swaziland 13 13 12 12 11
Mongolia 13 13 12 12 12
Latvia 13 13 12 13 13
Czech Republic 13 13 13 13 13
Iran, Islamic Rep. 13 13 13 13 13
Sudan 13 13 13 13 13
Bangladesh 14 13 13 13 12
Hungary 14 14 14 14 14
Ghana 14 14 13 13 13
Lesotho 14 14 13 13 13
Maldives 14 14 13 13 12
Bolivia 15 14 13 13 13
Togo 15 14 14 14 13
Gabon 15 14 14 13 13
Comoros 15 15 14 14 14
Zambia 15 15 15 16 16
Cote d'Ivoire 15 15 15 14 14
Tanzania 15 15 15 15 15
Cameroon 16 16 15 15 15
Haiti 16 16 16 15 15
Senegal 17 16 16 15 14
Lao PDR 17 16 16 16 16
Yemen, Rep. 17 16 16 15 14
Uganda 16 16 16 17 17
Madagascar 17 17 16 16 16
Nepal 17 17 16 16 15
Rwanda 18 17 16 16 15
Central African Republic 17 17 17 17 17
Bhutan 19 18 18 17 17
Eritrea 19 18 18 18 18
Burundi 19 18 18 18 18
Gambia, The 19 18 18 17 17
Congo, Dem. Rep. 19 19 19 18 18
Benin 19 19 18 18 17
Nigeria 19 19 19 19 18
Liberia 19 19 19 19 18
Burkina Faso 20 19 19 18 18
Guinea-Bissau 20 20 19 19 19
Somalia 20 20 19 19 19
Chad 21 21 21 20 20
Mozambique 21 21 21 21 21
Ethiopia 21 21 21 21 21
Malawi 22 21 21 21 20
Equatorial Guinea 22 22 21 21 21
Afghanistan 23 22 22 21 20
Guinea 23 23 22 22 21
Sierra Leone 24 24 24 24 24
Angola 24 24 24 24 24
South Sudan 25 24 24 24 24
Mali 25 25 24 23 23
Timor-Leste 26 25 23 22 20
Niger 25 25 25 24 24
Cambodia 42 34 26 19 15
St. Martin (French part) 4 4 3
Sint Maarten (Dutch part)
Faeroe Islands
Monaco
Andorra
Turks and Caicos Islands
Tuvalu
Isle of Man 16
Serbia
San Marino
Cayman Islands
Curacao
American Samoa
Palau
West Bank and Gaza
Northern Mariana Islands
Marshall Islands
Bermuda 7 7

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