Country name 1990 1991 1992 1993 1994
Nepal 2 2 2 2 2
Rwanda 3 3 4 4 5
Ethiopia 4 4 4 4 4
Poland 4 4 4 4 4
Uganda 4 4 4 4 4
Niger 6 6 6 6 6
Mozambique 6 6 6 6 6
Yemen, Rep. 6 6 6 6 7
Tanzania 6 6 6 6 6
Burkina Faso 6 6 6 6 7
Netherlands 6 6 6 6 6
Kazakhstan 7 7 7 7 7
Algeria 7 7 7 7 7
Cambodia 7 7 7 7 7
Vietnam 7 8 8 8 8
Kenya 8 8 8 8 8
Chad 8 8 8 8 8
Madagascar 8 8 9 9 9
Myanmar 8 8 9 9 9
Romania 9 9 9 9 9
Germany 9 9 9 9 9
Bangladesh 9 9 9 10 10
Mali 9 10 10 10 10
Zambia 10 10 10 10 10
China 10 10 10 11 11
Ukraine 10 10 10 10 10
Uzbekistan 10 10 10 10 9
Zimbabwe 10 10 11 11 11
Indonesia 10 10 10 10 10
Thailand 11 11 11 11 11
India 11 11 11 11 11
Honduras 12 12 12 12 12
Czech Republic 12 12 12 12 12
Malaysia 12 12 13 13 14
Nigeria 12 12 12 12 13
Sweden 12 12 12 13 13
Sudan 12 12 13 13 13
Korea, Dem. Rep. 13 13 13 13 13
Afghanistan 13 13 12 12 11
Ghana 13 13 13 13 14
Bulgaria 14 14 14 14 14
Philippines 14 14 15 15 15
Guinea 15 15 14 14 13
Cameroon 14 15 15 15 16
Serbia 15 15 15 15 15
Switzerland 15 15 15 15 15
Belarus 16 16 16 16 16
Guatemala 16 16 16 16 16
Pakistan 16 16 16 17 17
Haiti 16 16 17 17 18
Belgium 17 17 17 17 17
Angola 17 17 18 18 19
Cote d'Ivoire 17 17 17 18 18
Russian Federation 17 17 17 17 17
Somalia 16 17 18 18 18
Finland 17 18 18 18 18
Tunisia 18 18 19 19 19
Italy 19 18 18 18 18
El Salvador 18 18 19 19 18
Senegal 19 19 19 19 19
Hungary 19 19 19 19 19
Austria 20 20 20 20 19
Cuba 20 20 20 20 20
Denmark 20 20 20 20 20
Libya 20 20 20 20 21
Morocco 21 21 21 21 22
Dominican Republic 21 21 21 21 21
Spain 22 22 22 22 22
France 22 22 22 22 22
Congo, Dem. Rep. 23 23 23 23 23
Egypt, Arab Rep. 23 23 24 24 24
Iran, Islamic Rep. 23 24 24 24 24
Azerbaijan 24 24 24 23 23
Jordan 27 25 24 24 24
Georgia 25 25 25 24 24
Costa Rica 25 25 25 26 26
New Zealand 26 25 26 26 26
Paraguay 26 26 26 26 27
Ireland 26 26 26 26 26
Ecuador 26 26 26 27 27
Turkey 26 26 27 27 27
Mongolia 26 27 27 28 28
United Kingdom 27 27 27 27 27
Peru 27 27 27 27 27
South Africa 29 29 29 29 30
Congo, Rep. 30 30 30 30 30
Greece 30 30 30 30 29
Iraq 31 31 31 30 30
Bolivia 32 32 33 34 35
Colombia 33 33 33 33 34
Syrian Arab Republic 33 33 33 33 33
Armenia 33 33 34 34 35
Venezuela, RB 34 33 33 33 33
Mexico 34 34 34 35 35
Panama 34 35 35 36 36
Chile 35 35 35 35 35
Brazil 35 35 36 36 36
Portugal 37 37 38 38 38
Saudi Arabia 36 38 39 40 40
Argentina 39 39 39 39 39
Canada 40 40 40 40 40
United States 42 42 42 42 43
Lebanon 48 44 43 43 42
Uruguay 50 50 50 50 49
Korea, Rep. 51 51 51 51 50
Israel 58 57 57 57 58
United Arab Emirates 57 57 57 57 57
Liberia 50 58 47 37 29
Japan 58 59 59 59 59
Australia 61 61 61 61 61
Puerto Rico 66 66 66 66 66
Kuwait 68 69
Singapore 99 99 99 99 99
Hong Kong SAR, China 100 100 100 100 100
Cabo Verde
Liechtenstein
Seychelles
Malawi
Turks and Caicos Islands
Kiribati
Central African Republic
Maldives
Bhutan
Kosovo
Sao Tome and Principe
Malta
Slovak Republic
Marshall Islands
St. Kitts and Nevis
Mauritania
Brunei Darussalam
Mauritius
Trinidad and Tobago
Jamaica
Macedonia, FYR
Micronesia, Fed. Sts.
Curacao
Moldova
Luxembourg
Monaco
Solomon Islands
Lesotho
Cayman Islands
Montenegro
St. Martin (French part)
Isle of Man
Swaziland
Iceland
Tajikistan
Macao SAR, China
Togo
Latvia
Benin
Samoa
Belize
Namibia
Guyana
Lithuania
Guinea-Bissau
San Marino
New Caledonia
Cyprus
Guam
Croatia
Nicaragua
Sierra Leone
Grenada
Sint Maarten (Dutch part)
Greenland
Slovenia
Northern Mariana Islands
Comoros
Norway
South Sudan
Oman
Sri Lanka
Gambia, The
St. Lucia
Palau
St. Vincent and the Grenadines
Gabon
Suriname
Papua New Guinea
Burundi
French Polynesia
Botswana
Fiji
Bosnia and Herzegovina
Faeroe Islands
Timor-Leste
Estonia
Tonga
Eritrea
Bermuda
Vanuatu
Turkmenistan
Antigua and Barbuda
Tuvalu
Bahrain
Barbados
West Bank and Gaza
American Samoa
Bahamas, The
Kyrgyz Republic
Lao PDR
Qatar
Aruba
Equatorial Guinea
Virgin Islands (U.S.)
Dominica
Andorra
Djibouti
Albania

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