Country name 2010 2011 2012 2013
Pakistan 21 22
Sao Tome and Principe
Luxembourg 13 13 12
Albania 21
Algeria 33 31
Tonga
American Samoa
Mongolia 16 17
Andorra
Angola
St. Kitts and Nevis
Antigua and Barbuda
Vietnam 21 21
Argentina 23 24 23
Malta 25 24 22
Armenia 17 17
New Caledonia
Aruba
Portugal 28 27 26
Australia
Slovak Republic 37 37 38
Austria 25 26 26
Switzerland 21 21 20
Azerbaijan 14 14 14
Ukraine 21 21
Bahamas, The 13
Liberia 9
Bahrain 35
Malawi
Bangladesh
Mexico 26 24
Barbados 20 20 19
Myanmar
Belarus
Nigeria
Belgium 23 23 22
Paraguay 19 17 16
Belize
Russian Federation
Benin
Seychelles
Bermuda
South Africa 25 24
Bhutan 7 9 9
Sudan
Bolivia
Tanzania
Bosnia and Herzegovina 31 29 30
Turkmenistan
Botswana
Uruguay 21 21
Brazil 22
Zambia
Brunei Darussalam
Liechtenstein
Bulgaria 33 32 31
Macedonia, FYR 30 30
Burkina Faso
Maldives
Burundi
Mauritania
Cabo Verde
Moldova 19 19 19
Cambodia 16 17 19
Morocco 22 22 21
Cameroon 13
Nepal
Canada
Nicaragua 17
Cayman Islands
Norway 20 20 20
Central African Republic
Panama 19 19 18
Chad
Philippines 15 15 15
Chile 23 23
Qatar 54 52
China 29 30
Samoa
Colombia 20 21 21
Senegal
Comoros
Singapore
Congo, Dem. Rep.
Solomon Islands
Congo, Rep.
Spain 23 22 21
Costa Rica 20 20 20
St. Martin (French part)
Cote d'Ivoire
Swaziland
Croatia 27 28 27
Taiwan, China
Cuba 17 17
Timor-Leste 9
Curacao
Tunisia 33 34
Cyprus 20 21 20
Tuvalu
Czech Republic 38 38 38
United Kingdom 19 19 19
Denmark 20 20 20
Vanuatu
Djibouti
West Bank and Gaza 25 26 26
Dominica
Afghanistan
Dominican Republic 15 18
Libya
Ecuador 19 18 18
Lithuania 24 24 25
Egypt, Arab Rep. 25 24
Macao SAR, China
El Salvador 21 21 21
Madagascar
Equatorial Guinea
Malaysia 28 29 28
Eritrea
Mali
Estonia 31 33 31
Marshall Islands
Ethiopia
Mauritius 28 28 28
Faeroe Islands
Micronesia, Fed. Sts.
Fiji
Monaco
Finland 23 23 23
Montenegro 20 19 18
France 22 22 22
Mozambique
French Polynesia 8 8
Namibia 17 14
Gabon
Netherlands 16 15
Gambia, The
New Zealand
Georgia
Niger
Germany 28 28 28
Northern Mariana Islands
Ghana 15
Oman 37
Greece 20 18 17
Palau
Greenland
Papua New Guinea
Grenada
Peru 18 17
Guam 14
Poland 30 31 30
Guatemala 22 20 20
Puerto Rico 14 14 14
Guinea
Romania 29 29 29
Guinea-Bissau
Rwanda
Guyana
San Marino
Haiti
Saudi Arabia 23 25
Honduras 20 20
Serbia 26 27 27
Hong Kong SAR, China 11 11 12
Sierra Leone
Hungary 31 31 30
Sint Maarten (Dutch part)
Iceland 18 19 18
Slovenia 33 32 31
India 22 25
Somalia
Indonesia 19 20 22
South Sudan
Iran, Islamic Rep.
Sri Lanka 24 17 18
Iraq
St. Lucia
Ireland 20 19 18
St. Vincent and the Grenadines
Isle of Man
Suriname
Israel
Sweden 20 20 20
Italy 29 29 28
Syrian Arab Republic 33 33
Jamaica 16 16 16
Tajikistan
Japan 25
Thailand 21 21 21
Jordan 19 18 18
Togo
Kazakhstan 19 19 19
Trinidad and Tobago
Kenya
Turkey 26 27 26
Kiribati
Turks and Caicos Islands
Korea, Dem. Rep.
Uganda
Korea, Rep. 17
United Arab Emirates
Kuwait
United States 17
Kyrgyz Republic
Uzbekistan
Lao PDR
Venezuela, RB 22 21
Latvia 24 23 24
Virgin Islands (U.S.)
Lebanon
Yemen, Rep. 19
Lesotho
Zimbabwe

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