Country name 2006 2007 2008 2009 2010
Czech Republic 4
Paraguay 5
United States 6 8
Turkey 6
Egypt, Arab Rep. 12
Peru 12 13 11 10
Mongolia 14 22
El Salvador 18
Bolivia 20
Nigeria 20
India 14 21
Philippines 22
Sierra Leone 28 27
Rwanda 34 21
Ghana 36
Oman 56
Lesotho 23
Barbados
Austria
Belarus
Mauritius
Belgium
Romania
Belize
Uganda 38
Benin 27
Madagascar 19
Bermuda
Mozambique
Bhutan 12
Algeria
Australia
Serbia 7
Bosnia and Herzegovina
Togo 37
Botswana
Vietnam
Brazil 6
Lithuania
Brunei Darussalam
Mali 28
Bulgaria
Monaco
Burkina Faso 25
Niger 16
Burundi 32
Cabo Verde
Poland
Cambodia 17
San Marino
Cameroon
Slovak Republic
Canada
Tajikistan
Cayman Islands
Antigua and Barbuda
Central African Republic
Angola
Chad 28
Zambia 27
Chile
Libya 27
China
Macao SAR, China
Colombia 8
Malaysia
Comoros
Marshall Islands 8
Congo, Dem. Rep. 27 24
Micronesia, Fed. Sts.
Congo, Rep.
Montenegro
Costa Rica
Bangladesh 17
Cote d'Ivoire
Northern Mariana Islands
Croatia
Panama
Cuba
Bahrain
Curacao
Puerto Rico
Cyprus
Bahamas, The
Aruba
Saudi Arabia
Denmark
Azerbaijan 15
Djibouti
Solomon Islands 11
Dominica
Switzerland
Dominican Republic 11
Thailand 3
Ecuador
Trinidad and Tobago
Armenia 14
Turks and Caicos Islands
Argentina
United Arab Emirates
Equatorial Guinea
Vanuatu
Eritrea
West Bank and Gaza 16
Estonia
Afghanistan
Ethiopia
Liberia 36
Faroe Islands
Liechtenstein
Fiji
Luxembourg
Finland
Macedonia, FYR
France
Malawi 26
French Polynesia
Maldives 29
Gabon
Malta
Gambia, The 22
Mauritania
Georgia 12
Mexico 12 10
Germany
Moldova
Namibia 21
Andorra
Netherlands
Morocco
New Zealand
Myanmar
Greece
Nepal 25
Greenland
New Caledonia
Grenada
Nicaragua 11
Guam
American Samoa
Pakistan 25
Norway
Guatemala 21
Guinea
Palau
Guinea-Bissau 6
Papua New Guinea 27
Guyana 29
Albania 13
Haiti 37
Honduras 17
Portugal
Hong Kong SAR, China
Qatar
Hungary
Russian Federation
Iceland
Samoa 48
South Africa
Sao Tome and Principe 38
Spain
Senegal
Singapore
Seychelles
St. Kitts and Nevis
St. Martin (French part)
Sint Maarten (Dutch part)
Sudan 29
Slovenia
Swaziland 25 13
Somalia
Indonesia 13
South Sudan 26
Iran, Islamic Rep.
Sri Lanka 7
Iraq
St. Lucia
Ireland
St. Vincent and the Grenadines
Isle of Man
Suriname 17
Israel
Sweden
Italy
Syrian Arab Republic 16
Jamaica 10
Tanzania 22
Japan
Timor-Leste 32
Jordan 14 13
Tonga
Kazakhstan
Tunisia
Kenya 26
Turkmenistan
Kiribati 28
Tuvalu 24
Korea, Dem. People’s Rep. 15
Ukraine 10
Uruguay
United Kingdom
Korea, Rep.
Kuwait
Uzbekistan
Kyrgyz Republic
Venezuela, RB
Lao PDR
Virgin Islands (U.S.)
Latvia
Yemen, Rep. 24
Lebanon
Zimbabwe 16

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