Country name 2010 2011 2012
China 2 2 2
Finland 4
Iceland 4
Bosnia and Herzegovina 5
Estonia 5
Latvia 5
Lithuania 5
Montenegro 5
Cuba 5 5 5
Denmark 5
Poland 6
New Zealand 6
Moldova 6
Slovenia 6
Monaco 6
Kazakhstan 5 6
Russian Federation 6
Kyrgyz Republic 6
Georgia 5 7
Switzerland 7
Germany 7
Tunisia 7
Costa Rica 7 7 7
Slovak Republic 8
Israel 8
Czech Republic 8
Uruguay 8
Spain 8
Romania 8
Portugal 9
Hungary 9
Ecuador 9
Saudi Arabia 9
Mexico 9
Colombia 10
Japan 10
Greece 10
Honduras 10
Bahrain 10
Oman 10 10
Malaysia 11
Lao PDR 15
Haiti 23
Solomon Islands
Nicaragua 8
Comoros
Congo, Dem. Rep. 10
Cote d'Ivoire
Qatar 8
Croatia 5
Taiwan, China
Andorra
Morocco
Curacao
Panama 8
Cyprus
Senegal 19
Chile 6
St. Martin (French part)
Chad 20
Argentina 7 7
Djibouti
Bhutan 10
Dominica 11
Nepal 18
Dominican Republic
Norway
Central African Republic 14
Philippines 16
Egypt, Arab Rep.
Samoa
El Salvador 9
Singapore 10
Equatorial Guinea
Aruba
Eritrea
Swaziland 9
American Samoa
Timor-Leste
Ethiopia
Congo, Rep.
Faeroe Islands
Bolivia
Fiji
Mongolia 5
Algeria
Myanmar 9
France 7
New Caledonia
French Polynesia
Nigeria 15
Gabon
Pakistan
Gambia, The 10
Paraguay
Cayman Islands
Barbados 12
Canada 6
Bahamas, The 12
Ghana 11
Sao Tome and Principe
Cameroon
Seychelles
Greenland
Austria 7
Grenada 9
South Africa
Guam
St. Kitts and Nevis 10
Guatemala
Sudan
Guinea
Armenia 8
Guinea-Bissau 11
Tanzania 8
Guyana
Tonga
Tuvalu
Turkmenistan 5
Cambodia 11
Ukraine 5
Hong Kong SAR, China
Mauritius
Cabo Verde
Micronesia, Fed. Sts.
Albania
Bermuda
India
Benin
Indonesia 11
Mozambique 17
Iran, Islamic Rep. 8
Namibia
Iraq 13
Netherlands 6
Ireland 5
Belize 11
Isle of Man
Niger
Burundi 13
Northern Mariana Islands
Italy 7
Belgium
Jamaica 11
Palau 7
Burkina Faso 14
Papua New Guinea
Jordan
Peru 7
Bulgaria 9 9
Belarus 5
Kenya
Puerto Rico
Kiribati 8
Bangladesh
Korea, Dem. Rep.
Rwanda 7
Korea, Rep.
San Marino 10
Kuwait 8
Azerbaijan
Brunei Darussalam 12
Serbia 5 6
United Kingdom 7
Sierra Leone 11
Brazil 8 9
Sint Maarten (Dutch part)
Vanuatu
Australia 6
Vietnam 5
Somalia
Antigua and Barbuda 6
South Sudan
Libya
Sri Lanka
Liechtenstein
St. Lucia 10
Botswana
St. Vincent and the Grenadines 11
Luxembourg 7
Suriname 14
Macao SAR, China
Sweden 5
Macedonia, FYR 6
Syrian Arab Republic
Madagascar
Tajikistan
Malawi 14
Thailand 11
Angola
Togo 11
Maldives
Trinidad and Tobago 12
Mali 18
Turkey
Malta 7
Turks and Caicos Islands
Marshall Islands
Uganda 12
Mauritania 35
United Arab Emirates
West Bank and Gaza 9
United States 8
Zambia
Uzbekistan
Afghanistan
Venezuela, RB 9
Liberia
Virgin Islands (U.S.)
Lebanon
Yemen, Rep. 32
Lesotho
Zimbabwe 11

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