Country name 2010 2011 2012 2013
Saudi Arabia 0 0 0 1
Antigua and Barbuda 1 1 1 1
Azerbaijan 1 1 1 1
Congo, Rep. 6 2 1 2
Russian Federation 1 2 1 1
Nigeria 1 10 2 20
Ghana 1 1 3 1
Niger 13 18 3 4
Hong Kong SAR, China 4 4 4
Panama 1 1 4 5
Norway 7 6 6 7
Rwanda 8 7 6
Aruba 7 7 8
Oman 7 10 8 22
Mexico 8 10 9 9
Turkey 15 8 9 9
Bermuda 10 10 9 16
Switzerland 8 9 10 8
Brunei Darussalam 10 8
Algeria 2 2 10 8
Colombia 5 7 10 11
Vietnam 10 12 10 8
Czech Republic 9 10 10 10
Denmark 8 10 10 11
Zambia 12 7 11 11
Macao SAR, China 11 8 11
Kazakhstan 10 13 11 11
Canada 10 12 12 11
Luxembourg 10 11 12 11
Namibia 9 9 12 10
Romania 10 11 12 10
Costa Rica 12 12 12 13
Hungary 11 12 13 13
Argentina 8 13 13 15
Austria 11 12 13 12
Slovak Republic 13 15 13 13
Poland 11 13 14 12
Moldova 21 14 14 14
Ireland 12 14 14 14
Cambodia 7 14 14 11
United Kingdom 10 13 14 7
Ecuador 17 16 14 16
Malaysia 10 12 14 16
Peru 14 16 14 15
Cabo Verde 12 19 15 21
Germany 11 13 15 15
Iceland 13 14 15 19
Bolivia 12 14 15 20
Paraguay 12 13 16 14
Sweden 13 14 16 14
Botswana 15 16 16 17
Belize 16 17 16 15
Burundi 2 29 16
Kiribati 25 19 16
Latvia 15 17 17 16
Papua New Guinea 9 17
Georgia 18 12 17 18
Slovenia 13 15 17 15
Australia 14 17 17 18
Estonia 16 18 17 14
French Polynesia 13 16 17 17
Tunisia 13 15 17 18
France 14 17 17 17
Belgium 14 16 17 19
New Zealand 15 17 18 17
Brazil 17 19 18 19
China 15 17 18 17
United States 19 21 19 17
Egypt, Arab Rep. 13 15 19 14
El Salvador 16 18 19 19
Guatemala 18 20 20 19
Albania 14 18 20 17
Thailand 18 20 20 22
Portugal 14 18 20 20
Ethiopia 19 18 20 12
Zimbabwe 16 15 21 21
Bosnia and Herzegovina 19 22 21 20
Mauritius 19 22 21 22
Benin 21 17 21 11
Macedonia, FYR 18 21 21 16
Sri Lanka 17 21 22 24
Armenia 18 21 22 23
Philippines 17 20 22 21
Togo 14 15 22 22
Kyrgyz Republic 27 23 22 22
Israel 18 19 22 20
Finland 18 22 22 23
South Africa 19 21 22 22
Netherlands 16 20 22 24
Dominica 17 22
Chile 22 24 22 20
Indonesia 20 23 22 24
Dominican Republic 25 25 23
Uganda 20 23 23 23
Samoa 18 21 23 22
Italy 19 20 23 20
New Caledonia 16 18 23
Croatia 19 22 23 22
Madagascar 15 22 23 25
Tonga 23 24 24
Mozambique 20 24 24 29
Bahamas, The 24 27 24 22
Nicaragua 22 22 24 19
Afghanistan 21 35 24 17
Spain 18 21 25 23
Bulgaria 22 23 25 23
Honduras 22 25 25
Greenland 21 24 25 24
Sao Tome and Principe 16 16 26 26
Guyana 30 29 26 27
Mauritania 26 28 27 20
Solomon Islands 0 19 27 30
Gambia, The 21 22 27 24
Uruguay 20 21 27 19
Yemen, Rep. 21 30 27 1
Morocco 23 25 28
Turks and Caicos Islands 29 28
St. Vincent and the Grenadines 22 28 29
Mali 26 29 29
Senegal 30 32 29
Lebanon 21 24 30 25
Fiji 32 30 30 23
Cyprus 20 25 30 29
Cameroon 27 3 30
Cote d'Ivoire 24 29 31 26
Barbados 2 27 31 27
Ukraine 32 35 31 28
Maldives 23 25 31 29
Jordan 22 29 33 26
Tanzania 28 32 33 39
Singapore 26 33 33 31
Lithuania 32 33 34 30
Japan 29 32 34 34
Korea, Rep. 29 33 36 35
Jamaica 30 36 36 36
Pakistan 30 34 37 35
Greece 24 27 38 37
Belarus 35 41 39 29
India 36 38 43 43
Malta 25 37 45 39
Suriname 19 23
Korea, Dem. Rep.
South Sudan
Northern Mariana Islands
Timor-Leste 28
Kenya 22
Liechtenstein
St. Lucia
Lesotho
Syrian Arab Republic 20
Palau
Malawi 10 9 14
Nepal 18 22 20
Libya 1
Liberia
Curacao
Isle of Man
Cuba
Iraq
Monaco
Iran, Islamic Rep. 3 1
Myanmar 22
Vanuatu 14 18
Kuwait 1
Lao PDR
Kosovo
West Bank and Gaza
Haiti
Bahrain 38 44
Puerto Rico
Andorra
Qatar 1 1
Djibouti
Guinea-Bissau
Mongolia 26
Guinea
St. Kitts and Nevis 4 3
Guam
St. Martin (French part)
Grenada
Sudan 6 10
San Marino
Swaziland
Central African Republic 1 1
Congo, Dem. Rep.
Cayman Islands
Tajikistan
Turkmenistan
Comoros
Tuvalu
Chad
Gabon
Trinidad and Tobago 33
Montenegro
Micronesia, Fed. Sts.
Serbia
Burkina Faso 22 24 26
Seychelles
Bhutan 15 15
Sierra Leone
United Arab Emirates
Bangladesh 8 8
Marshall Islands
Sint Maarten (Dutch part)
Uzbekistan
Faeroe Islands
Venezuela, RB 1 1
Eritrea
Virgin Islands (U.S.)
Equatorial Guinea
Angola
Somalia
American Samoa

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