Country name 1989 1990 1991 1992 1993
Ethiopia 4 4 4 4 4
Poland 4 4 4 4 4
Uganda 4 4 4 4 4
Tanzania 5 5 5 5 5
Niger 5 6 6 6 6
Mozambique 6 6 6 6 6
Yemen, Rep. 5 6 6 6 6
Kenya 6 6 6 6 6
Burkina Faso 6 6 6 6 6
Vietnam 6 6 6 7 7
Kazakhstan 7 7 7 7 7
Algeria 7 7 7 7 7
Cambodia 7 7 7 7 7
Chad 8 8 8 8 8
Madagascar 8 8 8 8 9
Myanmar 8 8 8 9 9
Guatemala 9 9 9 9 9
Romania 9 9 9 9 9
Germany 9 9 9 9 9
Bangladesh 9 9 9 9 10
Sudan 9 9 9 10 10
Indonesia 10 10 10 10 10
Mali 9 9 10 10 10
Uzbekistan 10 10 10 10 10
Zambia 10 10 10 10 10
India 10 10 10 10 10
China 9 9 10 10 11
Zimbabwe 10 10 10 10 10
Afghanistan 12 11 11 10 10
Malaysia 10 10 10 10 10
Thailand 11 11 11 11 11
Czech Republic 12 12 12 12 12
Honduras 12 12 12 12 12
Ukraine 12 12 12 12 12
Sweden 12 12 12 12 13
Korea, Dem. Rep. 12 13 13 13 13
Netherlands 13 13 13 13 13
Nigeria 12 12 13 13 13
Ghana 13 13 13 13 13
Congo, Dem. Rep. 13 14 14 14 14
Bulgaria 13 14 14 14 14
Guinea 15 15 15 14 14
Philippines 14 14 14 15 15
Serbia 15 15 15 15
Cameroon 14 14 15 15 15
Switzerland 15 15 15 15 15
Togo 15 15 15 16 16
Pakistan 15 16 16 16 16
Belarus 16 16 16 16 16
Haiti 15 16 16 17 17
Belgium 17 17 17 17 17
Somalia 15 16 17 17 18
Russian Federation 17 17 17 17 17
Cote d'Ivoire 17 17 17 17 18
Finland 17 17 18 18 18
Nicaragua 18 18 18 18 18
Italy 19 19 18 18 18
El Salvador 18 18 18 19 19
Morocco 18 18 18 19 19
Hungary 19 19 19 19 19
Angola 18 18 19 19 19
Senegal 19 19 19 19 19
Austria 20 20 20 20 20
Cuba 20 20 20 20 20
Denmark 20 20 20 20 20
Libya 20 20 20 20 20
Dominican Republic 21 21 21 21 21
Egypt, Arab Rep. 22 22 21 21 21
France 22 22 22 22 22
Spain 22 22 22 22 23
Iran, Islamic Rep. 23 23 23 23 24
Azerbaijan 24 24 24 24 23
Jordan 27 27 25 24 24
Costa Rica 24 24 24 24 25
Georgia 25 25 25 25 24
Bolivia 24 25 25 26 26
New Zealand 26 26 25 26 26
Turkey 25 25 26 26 26
United Kingdom 26 26 26 26 26
Paraguay 25 26 26 26 26
Ireland 26 26 26 26 26
Ecuador 26 26 26 26 27
United Arab Emirates 26 26 26 27 27
Mongolia 26 26 27 27 28
Peru 27 27 27 27 27
South Africa 27 28 28 28 28
Greece 30 30 30 30 30
Congo, Rep. 29 30 30 30 30
Iraq 30 31 31 31 30
Syrian Arab Republic 31 31 31 31 31
Colombia 31 31 31 31 32
Venezuela, RB 34 34 33 33 33
Mexico 33 33 33 34 34
Armenia 33 33 33 34 34
Panama 34 34 34 34 34
Chile 35 35 35 35 35
Saudi Arabia 32 34 34 35 35
Brazil 35 35 35 36 36
Portugal 37 37 37 38 38
Argentina 39 39 39 39 39
Canada 39 40 40 40 40
United States 42 42 42 42 42
Lebanon 50 48 47 45 44
Japan 46 46 46 46 47
Uruguay 50 50 50 49 49
Korea, Rep. 50 51 51 51 51
Israel 58 58 57 57 57
Australia 60 60 60 60 60
Puerto Rico 62 66 66 66 66
Singapore 100 99 99 99 99
Hong Kong SAR, China 99 100 100 100 100
St. Lucia
Luxembourg
Sao Tome and Principe
Macao SAR, China
Tunisia
Macedonia, FYR
Slovenia
Liberia
Brunei Darussalam
Malawi
Bahrain
Kiribati
Seychelles
Maldives
South Sudan
Lesotho
Suriname
Malta
Timor-Leste
Marshall Islands
Tuvalu
Mauritania
Lithuania
Mauritius
Cyprus
Jamaica
Liechtenstein
Micronesia, Fed. Sts.
Croatia
Moldova
Sri Lanka
Monaco
St. Vincent and the Grenadines
Kuwait 65 68 67
Cabo Verde
Montenegro
Botswana
Isle of Man
Tonga
Iceland
Turkmenistan
Kosovo
Belize
Samoa
Latvia
Namibia
Kyrgyz Republic
Nepal
San Marino
Guyana
Djibouti
New Caledonia
Curacao
Sint Maarten (Dutch part)
Sierra Leone
Guinea-Bissau
Guam
Slovak Republic
Grenada
Solomon Islands
Greenland
Comoros
Northern Mariana Islands
Central African Republic
Norway
St. Kitts and Nevis
Oman
St. Martin (French part)
Gambia, The
Cayman Islands
Palau
Swaziland
Gabon
Burundi
Papua New Guinea
Tajikistan
French Polynesia
Bosnia and Herzegovina
Fiji
Bhutan
Faeroe Islands
Trinidad and Tobago
Estonia
Bermuda
Eritrea
Turks and Caicos Islands
Vanuatu
Benin
Antigua and Barbuda
Barbados
West Bank and Gaza
Bahamas, The
American Samoa
Lao PDR
Qatar
Aruba
Equatorial Guinea
Virgin Islands (U.S.)
Dominica
Andorra
Rwanda
Albania

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