Country name 1986 1987 1988 1989 1990
Nepal 2 2 2 2 2
Rwanda 3 3 3 3 3
Ethiopia 4 4 4 4 4
Uganda 4 4 4 4 4
Poland 4 4 4 4 4
Yemen, Rep. 4 5 5 5 5
Niger 5 5 5 5 6
Mozambique 5 5 6 6 6
Tanzania 5 5 6 6 6
Burkina Faso 6 6 6 6 6
Netherlands 6 6 6 6 6
Cambodia 6 6 6 7 7
Kazakhstan 7 7 7 7 7
Algeria 7 7 7 7 7
Vietnam 7 7 7 7 7
Kenya 8 8 8 8 8
Madagascar 8 8 8 8 8
Chad 8 8 8 8 8
Myanmar 8 8 8 8 8
Mali 8 8 8 9 9
Bangladesh 8 8 8 9 9
Romania 9 9 9 9 9
Germany 9 9 9 9 9
Zambia 9 9 9 9 9
China 9 9 9 9 10
Zimbabwe 9 9 9 10 10
Indonesia 10 10 10 10 10
Ukraine 10 10 10 10 10
India 10 10 10 10 11
Uzbekistan 11 11 10 10 10
Malaysia 10 10 10 11 12
Thailand 10 10 10 11 11
Sudan 10 10 11 11 12
Nigeria 11 11 11 12 12
Czech Republic 12 12 12 12 12
Honduras 11 12 12 12 12
Sweden 12 12 12 12 12
Korea, Dem. Rep. 12 12 12 12 13
Afghanistan 11 12 12 13 13
Ghana 12 12 13 13 13
Bulgaria 13 13 13 13 14
Cameroon 13 13 14 14 14
Philippines 14 14 14 14 14
Switzerland 13 14 14 15 15
Angola 13 14 14 15 15
Somalia 13 14 15 15 16
Haiti 14 15 15 16 16
Guinea 15 15 15 15 15
Belarus 15 15 16 16 16
Guatemala 16 16 16 16 16
Finland 15 16 16 17 17
Pakistan 17 17 17 17 17
Belgium 17 17 17 17 17
Cote d'Ivoire 17 17 17 17 17
Tunisia 17 17 17 18 18
Russian Federation 17 17 18 18 17
El Salvador 17 17 18 18 18
Senegal 18 18 18 19 19
Italy 19 19 19 19 19
Hungary 19 19 19 19 19
Libya 20 20 20 20 20
Cuba 20 20 20 20 20
Morocco 20 20 20 20 21
Austria 20 20 20 20 20
Denmark 21 20 20 20 20
Dominican Republic 21 21 21 21 21
Spain 22 22 22 22 22
France 22 22 22 22 22
Congo, Dem. Rep. 22 22 22 23 23
Egypt, Arab Rep. 23 23 23 23 23
Iran, Islamic Rep. 24 24 24 24 24
Costa Rica 24 24 24 25 25
Azerbaijan 25 25 25 24 24
Turkey 24 25 25 25 26
Paraguay 25 25 25 26 26
Ecuador 25 26 26 26 26
New Zealand 25 25 26 26 26
Georgia 25 26 26 26 25
Mongolia 26 26 26 26 26
Ireland 26 26 26 26 26
Peru 26 26 26 27 27
United Kingdom 27 27 27 27 27
Jordan 28 27 27 27 27
South Africa 28 28 28 28 29
Congo, Rep. 29 29 29 29 29
Bolivia 29 29 30 31 32
Greece 31 31 30 30 30
Iraq 30 30 31 31 31
Colombia 31 31 31 31 32
Syrian Arab Republic 33 33 33 33 33
Saudi Arabia 31 32 33 35 36
Armenia 34 33 33 33 33
Venezuela, RB 34 34 33 33 33
Panama 33 33 34 34 34
Mexico 33 34 34 34 35
Brazil 34 34 34 35 35
Chile 35 35 35 35 35
Liberia 27 31 36 42 50
Portugal 37 37 37 37 37
Canada 38 39 39 39 40
Argentina 40 39 39 39 39
United States 42 42 42 42 42
Korea, Rep. 47 48 49 50 51
Uruguay 50 50 50 50 50
Lebanon 58 57 56 52 48
Israel 55 56 57 58 58
Japan 56 57 57 58 58
United Arab Emirates 58 58 58 57 57
Puerto Rico 54 57 60 63 66
Australia 61 61 61 61 61
Kuwait 64 64 64 65 68
Hong Kong SAR, China 94 96 99 100 100
Singapore 100 100 100 100 99
Tajikistan
Macedonia, FYR
Solomon Islands
American Samoa
Luxembourg
Malawi
St. Martin (French part)
Kiribati
Bermuda
Maldives
Curacao
Kyrgyz Republic
Malta
Central African Republic
Marshall Islands
Swaziland
Mauritania
Togo
Mauritius
Macao SAR, China
Jamaica
Sao Tome and Principe
Micronesia, Fed. Sts.
Seychelles
Moldova
Slovak Republic
Monaco
Comoros
Lao PDR
St. Kitts and Nevis
Montenegro
Cayman Islands
Isle of Man
Burundi
Iceland
Bosnia and Herzegovina
Benin
Trinidad and Tobago
Antigua and Barbuda
Turks and Caicos Islands
Namibia
Lithuania
Guyana
West Bank and Gaza
Guinea-Bissau
Latvia
New Caledonia
Cyprus
Guam
Serbia 15
Nicaragua
Sierra Leone
Grenada
Sint Maarten (Dutch part)
Greenland
Slovenia
Northern Mariana Islands
Croatia
Norway
South Sudan
Oman
Sri Lanka
Gambia, The
St. Lucia
Palau
St. Vincent and the Grenadines
Gabon
Suriname
Papua New Guinea
Cabo Verde
French Polynesia
Brunei Darussalam
Fiji
Botswana
Faeroe Islands
Timor-Leste
Estonia
Tonga
Eritrea
Bhutan
Bahrain
Turkmenistan
Lesotho
Tuvalu
Liechtenstein
Belize
Vanuatu
Barbados
Qatar
Bahamas, The
Equatorial Guinea
Dominica
Aruba
Djibouti
Virgin Islands (U.S.)
Samoa
Andorra
San Marino
Albania

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