Country name 2006 2007 2008 2009 2010
Ireland 2 2 2 2 2
Singapore 3 3 3 3 3
Italy 3 3 3 3 3
Austria 3 3 3 3 3
Panama 3 3 3 3 3
Hong Kong SAR, China 3 3 3 3 3
Estonia 3 3 3 3 3
Japan 3 3 3 3 3
United States 3 3 3 3 3
Sweden 3 3 3 3 3
Canada 3 3 3 3 3
Switzerland 3 3 3 3 3
Iceland 4 4 4 4 4
Israel 4 4 4 4 4
Indonesia 4 4 4 4 4
France 4 4 2 2 2
Denmark 4 4 4 4 4
Czech Republic 4 4 4 4 4
Finland 4 4 4 4 4
Germany 4 4 4 4 4
Greece 4 4 4 4 4
Grenada 4 4 4 4 4
Malaysia 4 4 4 4 4
Spain 4 4 4 4 4
Portugal 4 4 4 4 4
St. Kitts and Nevis 4 4 4 4 4
Tunisia 4 4 4 4 4
United Kingdom 4 4 4 4 4
United Arab Emirates 4 4 4 3 3
Norway 4 4 4 4 4
New Zealand 4 4 4 4 4
Colombia 4 4 4 4 4
Lithuania 4 4 4 4 4
Mauritius 4 4 4 4 4
Mexico 4 4 4 4 4
Netherlands 4 4 4 4 4
Korea, Rep. 5 4 4 3 3
Lebanon 5 4 4 4 4
Belgium 4 4 4 4 4
Bulgaria 6 4 4 4 4
Marshall Islands 5 5 5 5 5
Chile 5 5 5 5 5
Nicaragua 5 5 5 5 5
Bahamas, The 5 5 5 5
Madagascar 9 5 5 5 5
Belize 5 5 5 5 5
Brunei Darussalam 5 5 5 5 5
Honduras 5 5 5 5 5
Jordan 5 5 5 5 5
Latvia 5 5 5 5 5
Palau 5 5 5 5 5
Luxembourg 5 5 5 5 5
Peru 5 5 5 5 5
Slovenia 5 5 5 5 5
Slovak Republic 5 5 5 5 5
St. Vincent and the Grenadines 5 5 5 5 5
Antigua and Barbuda 5 5 5 5 5
Vietnam 5 5 5 5 5
Trinidad and Tobago 5 5 5 5 5
Seychelles 5 5 5 5 5
Saudi Arabia 5 5 5 5 5
Australia 5 5 5 5 5
Poland 5 5 5 5 5
Puerto Rico 5 5 5 5 5
Qatar 5 5 5 5
Romania 5 5 5 5 5
Gabon 5 5 6 6 6
Micronesia, Fed. Sts. 5 5 5 5 5
Costa Rica 5 5 5 5 5
Dominican Republic 6 5 5 5 5
Bahrain 6 6 6 6
Bangladesh 6 6 6 6 6
Uruguay 6 6 6 6 6
Botswana 6 6 6 6 6
Jamaica 6 6 6 6 6
Samoa 6 6 6 6 6
Timor-Leste 6 6 6 6 6
Gambia, The 6 6 6 6 6
Togo 6 6 6 6 6
Tonga 6 6 6 6 6
Dominica 6 6 6 6 6
Kiribati 6 6 6 6 6
Brazil 6 6 6 6 6
Argentina 6 6 6 6 6
Hungary 6 6 6 6 6
Serbia 6 6 6 6 6
West Bank and Gaza 6 6 6 6 6
Yemen, Rep. 6 6 6 6 6
Croatia 6 6 6 6 6
Ghana 6 6 6 6 6
Guinea-Bissau 6 6 6 6 6
Morocco 6 6 5 5 5
Armenia 6 6 6 7 5
Guyana 6 6 6 6 6
Vanuatu 6 6 6 6 6
Philippines 6 6 6 6 6
Mozambique 7 7 7 7 7
South Africa 7 7 7 7 7
Sri Lanka 6 7 7 7 7
Macedonia, FYR 7 7 6 6 6
Sudan 7 7 7 7 7
Mali 7 7 7 6 6
El Salvador 6 7 7 7 7
St. Lucia 7 7 7 7 7
Congo, Dem. Rep. 7 7 7 7 7
Montenegro 7 7 7 7 6
Maldives 7 7 7 7 7
Equatorial Guinea 7 7 7 7 7
Turkey 8 7 7 7 7
Iran, Islamic Rep. 7 7 7 7 7
Albania 7 7 7 7 7
Bolivia 7 7 7 7 7
Paraguay 7 7 7 7 7
India 7 7 7 7 7
Cabo Verde 7 7 7 7 7
Zimbabwe 7 7 7 7 7
Zambia 7 7 7 7 7
Guinea 7 7 7 7 7
Tanzania 7 7 7 7 7
Papua New Guinea 7 7 7 7 7
Oman 7 7 7 7 7
Thailand 9 7 5 5 5
Uganda 12 7 7 7 7
Chad 7 7 7 7 7
Solomon Islands 7 7 7 7 7
Kuwait 7 7 7 7 7
Central African Republic 8 8 8 9 9
Sierra Leone 8 8 7 7 7
Pakistan 8 8 8 8 8
Ecuador 8 8 7 7 7
Djibouti 14 8 5 5 5
Niger 8 8 8 8 8
Ethiopia 8 8 8 8 8
Algeria 9 8 8 8 8
Ukraine 8 8 8 8 8
Fiji 8 8 8 8 8
Kenya 8 8 8 8 8
Bosnia and Herzegovina 6 8 8 8 8
Haiti 8 8 8 8 8
Georgia 8 8 8 4 4
China 8 8 8 8 8
Venezuela, RB 7 8 8 8 8
Benin 8 8 8 8 8
Lesotho 8 8 8 8 8
Mauritania 8 8 8 8 8
Belarus 8 8 8 8 8
Egypt, Arab Rep. 8 8 8 8 8
Suriname 8 8 8 8 8
Swaziland 8 8 8 8 8
Syrian Arab Republic 8 8 8 8 8
Sao Tome and Principe 8 8 8 8 8
Rwanda 13 8 8 8 7
Namibia 8 8 8 8 8
Comoros 9 9 9 9 9
Cote d'Ivoire 9 9 9 9 9
Nigeria 9 9 9 9 9
Bhutan 9 9 9 9 9
Moldova 9 9 9 9 9
Cameroon 9 9 9 10 11
Cambodia 9 9 9 9 8
Burundi 9 9 9 9 9
Guatemala 7 9 8 8 8
Azerbaijan 9 9 9 9 9
Eritrea 10 10 10 10 10
Russian Federation 10 10 10 10 10
Lao PDR 12 10 10 10 10
Iraq 10 10 10 10 10
Afghanistan 10 10 10 10 10
Liberia 10 10 10 10 10
Angola 10 10 10 9 9
Congo, Rep. 11 11 11 11 11
Burkina Faso 11 11 11 11 10
Kazakhstan 11 11 11 11 10
Senegal 11 11 6 6 6
Malawi 11 11 11 10 10
Tajikistan 11 11 11 11 11
Mongolia 11 11 11 11 11
Nepal 11 11 11 11 11
Uzbekistan 13 13 13 13 13
Kyrgyz Republic 15 15 15 9 9
Malta
Monaco
Korea, Dem. Rep.
St. Martin (French part)
Macao SAR, China
New Caledonia
Turks and Caicos Islands
Sint Maarten (Dutch part)
Barbados
Liechtenstein
Somalia
Isle of Man
Andorra
South Sudan
Turkmenistan
American Samoa
Tuvalu
Guam
Bermuda
French Polynesia
Myanmar
Curacao
Cyprus 5 5 5
Libya
Aruba
San Marino
Northern Mariana Islands
Virgin Islands (U.S.)
Faeroe Islands
Greenland
Cayman Islands
Cuba

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