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

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