Country name 2005 2006 2007 2008 2009
Ireland 2 2 2 2 2
France 7 4 4 2 2
Panama 3 3 3 3 3
Italy 3 3 3 3 3
Hong Kong SAR, China 6 3 3 3 3
United States 3 3 3 3 3
Japan 3 3 3 3 3
Singapore 3 3 3 3 3
Austria 3 3 3 3 3
Switzerland 3 3 3 3 3
Canada 3 3 3 3 3
Sweden 3 3 3 3 3
Estonia 3 3 3 3 3
Indonesia 4 4 4 4 4
Denmark 4 4 4 4 4
Israel 4 4 4 4 4
Iceland 4 4 4 4 4
Grenada 4 4 4 4 4
Czech Republic 4 4 4 4 4
Germany 4 4 4 4 4
Greece 4 4 4 4 4
Finland 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 4 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 5 4 4 3
Lebanon 5 5 4 4 4
Belgium 4 4 4 4 4
Bulgaria 6 6 4 4 4
Chile 5 5 5 5 5
Marshall Islands 5 5 5 5 5
Nicaragua 6 5 5 5 5
Bahamas, The 5 5 5
Morocco 6 6 6 5 5
Madagascar 9 9 5 5 5
Brunei Darussalam 5 5 5 5
Honduras 5 5 5 5 5
Jordan 5 5 5 5 5
Latvia 5 5 5 5 5
Luxembourg 5 5 5 5
Belize 5 5 5 5 5
Palau 5 5 5 5 5
Poland 5 5 5 5 5
St. Vincent and the Grenadines 5 5 5 5 5
Slovenia 5 5 5 5 5
Antigua and Barbuda 5 5 5 5 5
Thailand 9 9 7 5 5
Vietnam 5 5 5 5 5
Trinidad and Tobago 5 5 5 5 5
Slovak Republic 5 5 5 5 5
Seychelles 5 5 5 5 5
Puerto Rico 5 5 5 5 5
Australia 5 5 5 5 5
Qatar 5 5 5
Romania 7 5 5 5 5
Saudi Arabia 5 5 5 5 5
Peru 5 5 5 5 5
Micronesia, Fed. Sts. 5 5 5 5 5
Costa Rica 5 5 5 5 5
Dominican Republic 6 6 5 5 5
Cyprus 5 5
Djibouti 14 14 8 5 5
Bahrain 6 6 6
Bangladesh 6 6 6 6 6
Jamaica 5 6 6 6 6
Vanuatu 6 6 6 6 6
Macedonia, FYR 7 7 7 6 6
Kiribati 6 6 6 6 6
Samoa 6 6 6 6 6
Armenia 6 6 6 6 7
Timor-Leste 6 6 6 6 6
Togo 8 6 6 6 6
Croatia 6 6 6 6 6
Tonga 6 6 6 6 6
Argentina 6 6 6 6 6
Uruguay 6 6 6 6 6
Guyana 6 6 6 6 6
Philippines 6 6 6 6 6
Gabon 5 5 5 6 6
Yemen, Rep. 6 6 6 6 6
Gambia, The 6 6 6 6 6
Guinea-Bissau 6 6 6 6 6
West Bank and Gaza 6 6 6 6 6
Serbia 6 6 6 6 6
Dominica 6 6 6 6 6
Botswana 6 6 6 6 6
Senegal 11 11 11 6 6
Hungary 6 6 6 6 6
Brazil 6 6 6 6 6
Ghana 6 6 6 6 6
Mali 7 7 7 7 6
Sudan 7 7 7 7 7
St. Lucia 7 7 7 7 7
Equatorial Guinea 7 7 7 7 7
Sri Lanka 6 6 7 7 7
Mozambique 7 7 7 7 7
Ecuador 8 8 8 7 7
Maldives 7 7 7 7 7
Oman 7 7 7 7 7
Paraguay 7 7 7 7 7
Sierra Leone 8 8 8 7 7
Solomon Islands 7 7 7 7 7
Montenegro 7 7 7 7
El Salvador 6 6 7 7 7
Papua New Guinea 7 7 7 7 7
South Africa 7 7 7 7 7
Congo, Dem. Rep. 7 7 7 7 7
Uganda 12 12 7 7 7
Kuwait 7 7 7 7 7
Turkey 8 8 7 7 7
India 7 7 7 7 7
Iran, Islamic Rep. 7 7 7 7 7
Albania 7 7 7 7 7
Bolivia 7 7 7 7 7
Cabo Verde 7 7 7 7 7
Chad 7 7 7 7 7
Zimbabwe 7 7 7 7 7
Tanzania 9 7 7 7 7
Zambia 7 7 7 7 7
Guinea 7 7 7 7 7
Pakistan 8 8 8 8 8
Sao Tome and Principe 8 8 8 8 8
Rwanda 13 13 8 8 8
Bosnia and Herzegovina 6 6 8 8 8
Venezuela, RB 8 7 8 8 8
China 8 8 8 8 8
Haiti 8 8 8 8 8
Guatemala 7 7 9 8 8
Central African Republic 8 8 8 8 9
Algeria 9 9 8 8 8
Belarus 8 8 8 8 8
Fiji 8 8 8 8 8
Lesotho 8 8 8 8 8
Mauritania 8 8 8 8 8
Syrian Arab Republic 8 8 8 8 8
Swaziland 8 8 8 8 8
Ethiopia 8 8 8 8 8
Georgia 9 8 8 8 4
Benin 8 8 8 8 8
Egypt, Arab Rep. 8 8 8 8 8
Niger 8 8 8 8 8
Suriname 8 8 8 8 8
Kenya 7 8 8 8 8
Ukraine 8 8 8 8 8
Namibia 8 8 8 8 8
Comoros 9 9 9 9 9
Cote d'Ivoire 9 9 9 9 9
Nigeria 10 9 9 9 9
Moldova 9 9 9 9 9
Burundi 9 9 9 9 9
Cameroon 9 9 9 9 10
Cambodia 6 9 9 9 9
Azerbaijan 9 9 9 9 9
Bhutan 9 9 9 9 9
Iraq 10 10 10 10 10
Eritrea 10 10 10 10 10
Liberia 10 10 10 10
Afghanistan 10 10 10 10 10
Lao PDR 12 12 10 10 10
Angola 10 10 10 10 9
Russian Federation 10 10 10 10 10
Congo, Rep. 11 11 11 11 11
Malawi 11 11 11 11 10
Burkina Faso 11 11 11 11 11
Nepal 11 11 11 11 11
Kazakhstan 11 11 11 11 11
Tajikistan 11 11 11 11 11
Mongolia 11 11 11 11 11
Uzbekistan 13 13 13 13 13
Kyrgyz Republic 15 15 15 15 9
Somalia
New Caledonia
Malta
Myanmar
Curacao
Macao SAR, China
Turkmenistan
Monaco
Barbados
Sint Maarten (Dutch part)
Cayman Islands
Bermuda
Andorra
Tuvalu
Korea, Dem. Rep.
Turks and Caicos Islands
South Sudan
Kosovo 8
St. Martin (French part)
American Samoa
Guam
Liechtenstein
Cuba
French Polynesia
Isle of Man
Libya
Aruba
Virgin Islands (U.S.)
Northern Mariana Islands
Greenland
San Marino
Faeroe Islands

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