Country name 2010 2011 2012 2013
Niger 50 50 50 50
Uganda 49 49 49 48
Chad 49 49 49 48
Afghanistan 49 48 47 47
Angola 48 48 48 48
Somalia 48 48 47 47
Mali 47 47 47 47
Timor-Leste 47 47 46 46
Zambia 47 47 47 47
Gambia, The 46 46 46 46
Burkina Faso 46 46 46 46
Malawi 46 46 45 45
Mozambique 45 45 45 45
Congo, Dem. Rep. 45 45 45 45
Tanzania 45 45 45 45
Rwanda 45 44 44 43
Nigeria 44 44 44 44
Burundi 44 44 44 45
Ethiopia 44 44 43 43
Senegal 44 44 44 44
Cameroon 43 43 43 43
Liberia 43 43 43 43
Benin 43 43 43 43
Madagascar 43 43 43 42
Eritrea 43 43 43 43
Guinea 43 43 42 42
South Sudan 43 43 42 42
Kenya 43 42 42 42
Congo, Rep. 42 42 42 43
Comoros 42 42 42 42
Togo 42 42 42 42
Sierra Leone 42 42 42 42
Sudan 42 42 41 41
Guinea-Bissau 42 42 42 41
Cote d'Ivoire 42 42 41 41
Sao Tome and Principe 42 42 42 42
West Bank and Gaza 42 41 41 40
Yemen, Rep. 42 41 41 40
Guatemala 42 41 41 40
Iraq 41 41 41 40
Zimbabwe 41 41 40 39
Solomon Islands 41 41 40 40
Mauritania 41 40 40 40
Central African Republic 41 40 40 40
Equatorial Guinea 39 39 39 39
Ghana 39 39 39 38
Papua New Guinea 39 39 38 38
Gabon 39 39 38 38
Swaziland 39 38 38 38
Samoa 38 38 38 38
Vanuatu 38 38 37 37
Tonga 37 37 37 37
Guyana 38 37 37 36
Lesotho 38 37 37 36
Namibia 38 37 37 36
Nepal 37 36 36 35
Micronesia, Fed. Sts. 37 36 36 35
Honduras 37 36 36 35
Lao PDR 37 36 36 35
Tajikistan 36 36 36 36
Haiti 36 36 35 35
Bolivia 36 36 35 35
Syrian Arab Republic 36 35 35 35
Belize 35 35 34 34
Philippines 35 35 35 34
Pakistan 35 35 34 34
Jordan 35 35 34 34
Botswana 34 34 34 34
Nicaragua 35 34 33 33
Djibouti 34 34 34 34
Paraguay 34 33 33 32
Kiribati 34 33 32 32
Cambodia 32 31 31 31
Egypt, Arab Rep. 32 31 31 31
El Salvador 32 31 31 30
Bangladesh 32 31 31 30
Cabo Verde 32 31 30 30
Dominican Republic 31 31 31 30
Ecuador 31 31 30 30
Saudi Arabia 31 30 30 29
Kyrgyz Republic 30 30 30 30
India 30 30 29 29
South Africa 30 30 30 29
Indonesia 30 30 29 29
Peru 30 30 29 29
Mexico 30 30 29 28
Maldives 30 29 29 29
Libya 29 29 29 29
Uzbekistan 30 29 29 29
Venezuela, RB 29 29 29 29
Bhutan 30 29 29 28
Panama 29 29 29 28
Fiji 29 29 29 29
Turkmenistan 29 29 29 28
Jamaica 29 28 28 27
Colombia 29 28 28 28
Suriname 29 28 28 27
Morocco 28 28 28 28
Israel 27 27 28 28
Grenada 28 27 27 27
Algeria 27 27 27 28
Malaysia 28 27 27 26
Guam 28 27 27 26
Mongolia 27 27 27 27
Turkey 27 26 26 26
Brunei Darussalam 27 26 26 25
St. Vincent and the Grenadines 27 26 26 25
Antigua and Barbuda 26 26 25 25
Oman 27 26 24 23
Myanmar 26 26 25 25
Kazakhstan 25 25 25 26
Sri Lanka 25 25 25 25
Kuwait 25 25 25 25
Brazil 25 25 25 24
St. Lucia 25 25 24 24
Argentina 25 25 24 24
Costa Rica 25 24 24 24
Iran, Islamic Rep. 24 24 24 24
Tunisia 23 23 23 23
French Polynesia 24 23 23 23
Vietnam 23 23 23 23
New Caledonia 24 23 23 23
Lebanon 24 23 22 21
Azerbaijan 23 22 22 22
Korea, Dem. Rep. 23 22 22 22
Uruguay 23 22 22 22
Seychelles 22 22 22 22
Albania 23 22 21 21
Bahamas, The 22 22 22 21
Chile 22 22 21 21
Ireland 21 21 22 22
Iceland 21 21 21 21
Trinidad and Tobago 21 21 21 21
Mauritius 21 21 20 20
Virgin Islands (U.S.) 21 21 21 21
Aruba 21 20 20 19
Armenia 21 20 20 20
New Zealand 20 20 20 20
Puerto Rico 20 20 20 19
Bahrain 20 20 20 21
United States 20 20 20 20
Curacao 20 20 20 19
Montenegro 19 19 19 19
Barbados 19 19 19 19
Australia 19 19 19 19
Thailand 19 19 18 18
Norway 19 19 19 19
France 18 18 18 18
China 18 18 18 18
Denmark 18 18 18 18
United Kingdom 18 18 18 18
Luxembourg 18 18 17 18
Cyprus 18 17 17 17
Georgia 17 17 18 18
Netherlands 18 17 17 17
Macedonia, FYR 17 17 17 17
Cuba 17 17 17 16
Singapore 17 17 16 16
Bosnia and Herzegovina 17 17 16 16
Belgium 17 17 17 17
Serbia 17 17 16 16
Sweden 17 17 17 17
Moldova 17 17 17 17
Finland 17 16 16 16
Canada 16 16 16 16
Korea, Rep. 16 16 15 15
Estonia 15 16 16 16
Malta 16 15 15 15
Russian Federation 15 15 15 16
Lithuania 15 15 15 15
Croatia 15 15 15 15
Spain 15 15 15 15
Portugal 15 15 15 15
Romania 15 15 15 15
Slovak Republic 15 15 15 15
Belarus 15 15 15 15
Poland 15 15 15 15
Switzerland 15 15 15 15
Hungary 15 15 15 15
Austria 15 15 15 14
Greece 15 15 15 15
Czech Republic 14 14 15 15
Latvia 14 14 15 15
Slovenia 14 14 14 14
Italy 14 14 14 14
Ukraine 14 14 14 14
United Arab Emirates 14 14 14 15
Bulgaria 13 13 14 14
Qatar 14 13 13 14
Germany 13 13 13 13
Japan 13 13 13 13
Macao SAR, China 13 12 12 12
Hong Kong SAR, China 12 12 12 12
Isle of Man
Greenland
St. Kitts and Nevis
Dominica
Monaco
Cayman Islands
Bermuda
Tuvalu
San Marino
St. Martin (French part)
Faeroe Islands
Marshall Islands
Andorra
Liechtenstein
Palau
Kosovo 27
Northern Mariana Islands
Turks and Caicos Islands
American Samoa
Sint Maarten (Dutch part)

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