Country name 1985 1986 1987 1988 1989
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 4 5 5 5
Mozambique 5 5 5 5 6
Niger 5 5 5 5 6
Tanzania 5 5 5 6 6
Burkina Faso 5 6 6 6 6
Cambodia 5 6 6 6 7
Netherlands 6 6 6 6 6
Kazakhstan 7 7 7 7 7
Algeria 7 7 7 7 7
Vietnam 8 7 7 7 7
Madagascar 7 8 8 8 8
Kenya 8 8 8 8 8
Chad 8 8 8 8 8
Bangladesh 8 8 8 8 9
Myanmar 8 8 8 8 8
Mali 8 8 9 9 9
Romania 9 9 9 9 9
Germany 9 9 9 9 9
China 9 9 9 9 9
Zimbabwe 9 9 9 9 10
Zambia 9 9 9 9 10
Malaysia 9 10 10 10 11
Sudan 9 10 10 11 11
India 10 10 10 10 10
Ukraine 10 10 10 10 10
Indonesia 10 10 10 10 10
Thailand 10 10 10 10 11
Uzbekistan 11 11 11 10 10
Nigeria 11 11 11 11 12
Honduras 11 11 12 12 12
Afghanistan 11 12 12 13 13
Czech Republic 12 12 12 12 12
Korea, Dem. Rep. 12 12 12 12 12
Sweden 12 12 12 12 12
Ghana 12 12 12 13 13
Cameroon 13 13 13 14 14
Somalia 12 13 14 15 15
Bulgaria 13 13 13 13 13
Switzerland 13 13 14 14 15
Philippines 14 14 14 14 14
Haiti 14 14 15 15 15
Angola 14 14 15 15 16
Belarus 15 15 15 16 16
Finland 15 15 16 16 17
Guinea 15 15 15 15 15
Pakistan 16 16 16 16 16
Guatemala 16 16 16 16 16
El Salvador 16 17 17 17 18
Cote d'Ivoire 17 17 17 17 17
Belgium 17 17 17 17 17
Tunisia 17 17 17 17 18
Russian Federation 17 17 17 18 18
Senegal 18 18 18 18 19
Italy 19 19 19 19 19
Hungary 19 19 19 19 19
Cuba 20 20 20 20 20
Libya 20 20 20 20 20
Morocco 20 20 20 20 21
Austria 20 20 20 20 20
Denmark 21 21 20 20 20
Dominican Republic 21 21 21 21 21
Spain 22 22 22 22 22
Congo, Dem. Rep. 21 22 22 22 23
Egypt, Arab Rep. 22 22 22 23 23
France 22 22 22 22 22
Turkey 24 24 25 25 25
Iran, Islamic Rep. 24 24 24 24 23
Costa Rica 24 24 24 25 25
Azerbaijan 25 25 25 25 24
Paraguay 25 25 25 25 25
New Zealand 25 25 25 26 26
Georgia 25 25 26 26 26
Ecuador 26 26 26 26 26
Mongolia 26 26 26 26 26
Ireland 26 26 26 26 26
Peru 26 26 26 27 27
Liberia 23 27 31 36 42
United Kingdom 27 27 27 27 27
Jordan 28 28 27 27 27
South Africa 28 28 28 28 28
Congo, Rep. 29 29 29 29 29
Bolivia 29 29 30 31 31
Iraq 30 30 30 31 31
Greece 31 31 31 30 30
Saudi Arabia 31 32 33 34 35
Colombia 32 32 32 32 32
Panama 32 33 33 33 34
Mexico 33 33 34 34 34
Syrian Arab Republic 34 33 33 33 33
Armenia 34 34 33 33 33
Venezuela, RB 34 34 34 34 34
Brazil 34 34 34 35 35
Chile 35 35 35 35 35
Portugal 36 37 37 37 37
Canada 38 38 39 39 39
Argentina 40 40 40 39 39
United States 42 42 42 42 42
Korea, Rep. 46 47 48 49 50
Uruguay 50 50 50 50 50
Puerto Rico 51 54 57 60 63
Israel 54 55 56 57 58
Japan 56 56 57 57 58
Lebanon 59 58 57 56 52
United Arab Emirates 59 58 58 58 57
Australia 62 61 61 61 61
Kuwait 65 64 64 64 65
Hong Kong SAR, China 92 94 96 99 100
Singapore 99 100 100 100 100
Botswana
Macedonia, FYR
Lao PDR
Liechtenstein
Malawi
St. Lucia
Kyrgyz Republic
Trinidad and Tobago
Slovenia
Croatia
Maldives
Luxembourg
South Sudan
Malta
Suriname
Marshall Islands
Bhutan
Mauritania
Turks and Caicos Islands
Mauritius
Macao SAR, China
Kiribati
Seychelles
Micronesia, Fed. Sts.
Moldova
Comoros
Monaco
Sri Lanka
Jamaica
St. Vincent and the Grenadines
Montenegro
Burundi
Isle of Man
Tajikistan
Iceland
Togo
Lithuania
Benin
Virgin Islands (U.S.)
Belize
Latvia
Bahrain
Namibia
Antigua and Barbuda
Guyana
American Samoa
Guinea-Bissau
Curacao
New Caledonia
Serbia
Sint Maarten (Dutch part)
Sierra Leone
Guam
Nicaragua
Slovak Republic
Grenada
Solomon Islands
Greenland
Central African Republic
Northern Mariana Islands
Cayman Islands
Norway
St. Kitts and Nevis
Oman
St. Martin (French part)
Gambia, The
Cabo Verde
Palau
Swaziland
Gabon
Brunei Darussalam
Papua New Guinea
Taiwan, China
French Polynesia
Bosnia and Herzegovina
Fiji
Timor-Leste
Faeroe Islands
Tonga
Estonia
Bermuda
Eritrea
Turkmenistan
Equatorial Guinea
Tuvalu
Qatar
Barbados
Dominica
Aruba
Bahamas, The
Djibouti
Cyprus
Vanuatu
Samoa
Andorra
San Marino
West Bank and Gaza
Sao Tome and Principe
Albania
Lesotho

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