Country name 2010 2011 2012 2013
Pakistan 23 25
Saudi Arabia 26 28
Luxembourg 19 19 19
Albania 28
Algeria 34 32
Tunisia
American Samoa
Mongolia 20 22
Andorra
Angola
St. Lucia
Antigua and Barbuda
West Bank and Gaza 28 29 30
Argentina 33 33 33
Malta 32 31 28
Armenia 27 26
New Caledonia
Aruba
Puerto Rico 18 18 19
Australia
Slovenia 43 43 42
Austria 37 38 38
Syrian Arab Republic 36 36
Azerbaijan 21 22 22
United Kingdom 29 29 29
Bahamas, The 22
Liberia 14
Bahrain 42
Malawi
Bangladesh
Mexico 30 29
Barbados 30 30 28
Myanmar
Belarus
Nigeria
Belgium 34 35 33
Peru 23 23
Belize
Rwanda
Benin
Sierra Leone
Bermuda
South Sudan
Bhutan 7 10 10
Suriname
Bolivia
Timor-Leste 10
Bosnia and Herzegovina 40 36 38
Tuvalu
Botswana
Vanuatu
Brazil 29
Afghanistan
Brunei Darussalam
Liechtenstein
Bulgaria 41 38 37
Macedonia, FYR 33 33
Burkina Faso
Maldives
Burundi
Mauritania
Cabo Verde
Moldova 25 25 26
Cambodia 17 16 19
Morocco
Cameroon 13
Nepal
Canada
Nicaragua 18
Palau
Norway 31 32 32
Cayman Islands
Central African Republic
Papua New Guinea
Chad
Poland 42 42 42
Chile 31 32
Romania 36 36 35
China
San Marino
Colombia 22 24 24
Serbia 33 34 33
Comoros
Sint Maarten (Dutch part)
Congo, Dem. Rep.
Somalia
Congo, Rep.
Sri Lanka 24 14 14
Costa Rica 24 25 24
St. Vincent and the Grenadines
Cote d'Ivoire
Sweden 31 31 30
Croatia 38 37 36
Tanzania
Cuba 20 20
Tonga
Curacao
Turkmenistan
Cyprus 30 32 31
Ukraine
Czech Republic 49 49 49
Uruguay
Denmark 29 29 29
Vietnam 25
Djibouti
Zambia
Dominica
Lesotho
Dominican Republic 21 22
Libya
Ecuador 23 22 22
Lithuania 33 33 34
Egypt, Arab Rep. 30 28
Macao SAR, China
El Salvador 24 23 23
Madagascar
Equatorial Guinea
Malaysia 31 33 33
Eritrea
Mali
Estonia 44 46 45
Marshall Islands
Ethiopia
Mauritius 32 32 32
Faeroe Islands
Micronesia, Fed. Sts.
Fiji
Monaco
Finland 36 36 36
Montenegro 28 27 26
France 33 33 32
Mozambique
French Polynesia
Namibia 25 22
Gabon
Netherlands 24 23
Gambia, The
New Zealand
Georgia
Niger
Germany 40 40 40
Northern Mariana Islands
Ghana 17
Oman 43
Greece 28 25 23
Greenland
Panama 24 24 24
Grenada
Paraguay 25 23 22
Guam
Philippines 18 18 19
Guatemala 21 19 22
Portugal 38 37 35
Guinea
Qatar 61 59
Guinea-Bissau
Russian Federation
Guyana
Samoa
Haiti
Sao Tome and Principe
Honduras 19 19
Senegal
Hong Kong SAR, China 18 18 19
Seychelles
Hungary 40 40 39
Singapore
Iceland 28 28 28
Slovak Republic 50 50 51
India 24 26
Solomon Islands
Indonesia 22 23 25
South Africa 33 33 32
Iran, Islamic Rep.
Spain 34 32 31
Iraq
St. Kitts and Nevis
Ireland 29 28 27
St. Martin (French part)
Isle of Man
Sudan
Israel
Swaziland
Italy 39 38 38
Switzerland 30 31 29
Jamaica 23 23 22
Tajikistan
Japan 33
Thailand 23 23 23
Jordan 21 20 19
Togo
Kazakhstan
Trinidad and Tobago
Kenya
Turkey 30 31 31
Kiribati
Turks and Caicos Islands
Korea, Dem. Rep.
Uganda
Korea, Rep. 20
United Arab Emirates
Kosovo 33
United States 25
Kuwait
Uzbekistan
Kyrgyz Republic
Venezuela, RB 29
Lao PDR
Virgin Islands (U.S.)
Latvia 35 33 33
Yemen, Rep. 19
Lebanon
Zimbabwe

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