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
Romania 9 9 9 9 9
Guatemala 9 9 9 9 9
Germany 9 9 9 9 9
Bangladesh 9 9 9 9 10
Sudan 9 9 9 10 10
Mali 9 9 10 10 10
Indonesia 10 10 10 10 10
Zambia 10 10 10 10 10
China 9 9 10 10 11
India 10 10 10 10 10
Uzbekistan 10 10 10 10 10
Zimbabwe 10 10 10 10 10
Malaysia 10 10 10 10 10
Thailand 11 11 11 11 11
Afghanistan 12 11 11 10 10
Czech Republic 12 12 12 12 12
Honduras 12 12 12 12 12
Sweden 12 12 12 12 13
Ukraine 12 12 12 12 12
Korea, Dem. Rep. 12 13 13 13 13
Nigeria 12 12 13 13 13
Netherlands 13 13 13 13 13
Ghana 13 13 13 13 13
Congo, Dem. Rep. 13 14 14 14 14
Bulgaria 13 14 14 14 14
Philippines 14 14 14 15 15
Guinea 15 15 15 14 14
Cameroon 14 14 15 15 15
Serbia 15 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
Somalia 15 16 17 17 18
Belgium 17 17 17 17 17
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
El Salvador 18 18 18 19 19
Italy 19 19 18 18 18
Morocco 18 18 18 19 19
Angola 18 18 19 19 19
Senegal 19 19 19 19 19
Hungary 19 19 19 19 19
Cuba 20 20 20 20 20
Austria 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
Costa Rica 24 24 24 24 25
Jordan 27 27 25 24 24
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
Paraguay 25 26 26 26 26
United Kingdom 26 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
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
Armenia 33 33 33 34 34
Venezuela, RB 34 34 33 33 33
Mexico 33 33 33 34 34
Panama 34 34 34 34 34
Saudi Arabia 32 34 34 35 35
Chile 35 35 35 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
Japan 46 46 46 46 47
Lebanon 50 48 47 45 44
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
Kuwait 65 68 67
Singapore 100 99 99 99 99
Hong Kong SAR, China 99 100 100 100 100
St. Kitts and Nevis
Sao Tome and Principe
Macao SAR, China
Trinidad and Tobago
Macedonia, FYR
Slovak Republic
Kosovo
Burundi
Malawi
Barbados
Liberia
Seychelles
Maldives
Comoros
Kiribati
Cayman Islands
Malta
Bosnia and Herzegovina
Marshall Islands
Turks and Caicos Islands
Mauritania
Luxembourg
Mauritius
Cyprus
Jamaica
Liechtenstein
Micronesia, Fed. Sts.
Solomon Islands
Moldova
Central African Republic
Monaco
St. Martin (French part)
Lesotho
Swaziland
Montenegro
Tajikistan
Isle of Man
Bhutan
Iceland
Bermuda
Lithuania
Benin
Lao PDR
Bahamas, The
Namibia
American Samoa
Nepal
San Marino
Guyana
Djibouti
New Caledonia
Curacao
Guinea-Bissau
Sierra Leone
Guam
Sint Maarten (Dutch part)
Grenada
Slovenia
Greenland
Croatia
Northern Mariana Islands
South Sudan
Norway
Sri Lanka
Oman
St. Lucia
Gambia, The
St. Vincent and the Grenadines
Palau
Suriname
Gabon
Cabo Verde
Papua New Guinea
Brunei Darussalam
French Polynesia
Botswana
Fiji
Timor-Leste
Faeroe Islands
Tonga
Estonia
Tunisia
Eritrea
Turkmenistan
Kyrgyz Republic
Tuvalu
Vanuatu
Belize
Antigua and Barbuda
Bahrain
West Bank and Gaza
Latvia
Qatar
Equatorial Guinea
Aruba
Dominica
Virgin Islands (U.S.)
Rwanda
Andorra
Samoa
Albania

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