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

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