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

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