Country name 2010 2011 2012 2013
Saudi Arabia 2 2
Hong Kong SAR, China 4 4 4
Luxembourg 5 4 4
Bahamas, The 4
Qatar 4 4
Egypt, Arab Rep. 6 5
Netherlands 6 6
Azerbaijan 6 6 6
Armenia 6 7
Jamaica 7 7 7
Namibia 7 5
Norway 7 7 8
United Kingdom 7 8 8
Sweden 8 8 8
Greece 8 8 8
Iceland 8 8 8
Puerto Rico 9 8 8
Jordan 9 8 8
Bhutan 7 9 7
Paraguay 9 9 8
Cyprus 9 9 9
Ireland 9 9 9
Spain 10 9 9
West Bank and Gaza 8 9 9
Syrian Arab Republic 9 9
Finland 10 9 9
Denmark 9 9 10
Montenegro 10 9 8
Barbados 9 10 10
Dominican Republic 7 10
Panama 10 10 9
Belgium 10 10 9
Switzerland 10 10 10
Philippines 10 10 10 10
Argentina 10 10 10
Peru 11 10
Chile 10 11
France 10 11 10
Pakistan 11 11
Ecuador 11 11 11
Costa Rica 12 11 11
Brazil 12
Cuba 12 12
Mongolia 12 12
Moldova 12 12 13
Austria 12 12 13
Malta 13 13 11
South Africa 13 13 13
Latvia 14 14 14
Italy 14 14 14
Germany 14 14 14
Turkey 16 15 15
Indonesia 15 15 16
Croatia 15 16 17
Mexico 18 16
Portugal 16 16 15
Lithuania 16 16 16
Bosnia and Herzegovina 16 16 17
Colombia 16 16 17
Serbia 16 17 17
Poland 16 17 16
Cambodia 16 18 18
Thailand 18 18 18
Slovenia 21 18 18
El Salvador 18 19 18
Estonia 18 19 18
Hungary 20 20 19
Romania 20 20 20
Honduras 21 21
Guatemala 24 21 16
Mauritius 22 21 20
Slovak Republic 21 21 21
Malaysia 21 22 20
Sri Lanka 25 23 25
Algeria 30 24
Bulgaria 25 24 25
Czech Republic 23 24 23
Macedonia, FYR 26 24
Vanuatu
Cote d'Ivoire
Guyana
San Marino
Haiti
Togo
Grenada
Belarus
Chad
Sint Maarten (Dutch part)
Greenland
Andorra
Central African Republic
Tuvalu
India 18 21
Palau
China
Guinea-Bissau
Iran, Islamic Rep.
Equatorial Guinea
Iraq
Somalia
Cayman Islands
St. Vincent and the Grenadines
Isle of Man
Tajikistan
Israel
Guinea
Ghana 14
Albania 11
Canada
Oman 6
Japan 15
Papua New Guinea
Cameroon 12
Faeroe Islands
Kazakhstan
Rwanda
Kenya
Aruba
Kiribati
Sierra Leone
Korea, Dem. Rep.
Congo, Rep.
Korea, Rep. 13
South Sudan
Kuwait
St. Lucia
Kyrgyz Republic
Suriname
Lao PDR
Dominica
Georgia
Djibouti
Zambia
Trinidad and Tobago
Afghanistan
Turkmenistan
Liberia 5
Ukraine
Libya
Uruguay
Liechtenstein
Guam
Gambia, The
Bermuda
Cabo Verde
Benin
Macao SAR, China
Belize
Bahrain 9
Bangladesh
Eritrea
Ethiopia
Madagascar
Australia
Malawi
Russian Federation
Gabon
Samoa
Maldives
Sao Tome and Principe
Mali
Senegal
Burundi
Seychelles
Marshall Islands
Singapore
Mauritania
Congo, Dem. Rep.
French Polynesia
Solomon Islands
Comoros
Antigua and Barbuda
Micronesia, Fed. Sts.
Angola
Burkina Faso
St. Kitts and Nevis
Monaco
St. Martin (French part)
Vietnam 17
Sudan
Curacao
Swaziland
Morocco
American Samoa
Mozambique
Taiwan, China
Myanmar
Tanzania
Botswana
Timor-Leste 7
Nepal
Tonga
Fiji
Tunisia
New Caledonia
New Zealand
Turks and Caicos Islands
Nicaragua 15
Uganda
Niger
United Arab Emirates
Nigeria
United States 7
Northern Mariana Islands
Uzbekistan
Bolivia
Venezuela, RB 11
Brunei Darussalam
Virgin Islands (U.S.)
Lebanon
Yemen, Rep. 15
Lesotho
Zimbabwe

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