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

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