Country name 1981 1982 1983 1984 1985
Nepal 2 2 2 2 2
Rwanda 3 3 3 3 3
Ethiopia 3 3 4 4 4
Yemen, Rep. 3 3 4 4 4
Uganda 4 4 4 4 4
Poland 4 4 4 4 4
Mozambique 5 5 5 5 5
Burkina Faso 4 4 5 5 5
Niger 5 5 5 5 5
Tanzania 5 5 5 5 5
Cambodia 6 6 6 6 6
Netherlands 7 6 6 6 6
Kazakhstan 7 7 7 7 7
Madagascar 7 7 7 7 7
Bangladesh 7 7 7 7 8
Mali 7 7 7 8 8
Chad 7 7 8 8 8
Kenya 7 8 8 8 8
Vietnam 8 8 8 8 8
Algeria 8 8 8 8 7
Malaysia 7 8 8 9 9
Myanmar 8 8 8 8 8
China 8 8 8 9 9
Zimbabwe 8 8 8 9 9
Romania 8 8 8 9 9
Sudan 8 8 9 9 9
Germany 9 9 9 9 9
Zambia 9 9 9 9 9
Afghanistan 8 8 9 10 11
India 9 9 10 10 10
Indonesia 10 10 10 10 10
Ukraine 10 10 10 10 10
Thailand 10 10 10 10 10
Nigeria 9 10 10 10 11
Somalia 9 10 10 11 12
Honduras 10 11 11 11 11
Uzbekistan 11 11 11 11 11
Korea, Dem. People’s Rep. 11 11 11 11 12
Czech Republic 11 12 12 12 12
Cameroon 11 12 12 12 13
Sweden 12 12 12 12 12
Angola 12 12 12 12 13
Ghana 12 12 12 12 12
Switzerland 11 12 12 13 13
Bulgaria 12 13 13 13 13
Haiti 13 13 13 13 14
Philippines 14 14 14 14 14
Belarus 14 14 14 15 15
Finland 14 14 15 15 15
Guinea 15 15 15 15 15
Guatemala 16 16 16 16 16
El Salvador 16 16 16 16 17
Pakistan 17 17 17 17 17
Tunisia 16 17 17 17 17
Cote d'Ivoire 17 17 17 17 17
Belgium 17 17 17 17 17
Russian Federation 17 17 17 17 17
Senegal 17 18 18 18 18
Italy 19 19 19 19 19
Hungary 19 19 19 19 19
Liberia 18 18 19 21 23
Morocco 19 20 20 20 20
Cuba 19 20 20 20 20
Libya 20 20 20 20 20
Austria 20 20 20 20 20
Congo, Dem. Rep. 20 20 21 21 21
Denmark 21 21 21 21 21
Spain 22 22 22 22 22
Dominican Republic 22 22 22 22 22
France 22 22 22 22 22
Egypt, Arab Rep. 23 23 23 23 23
Turkey 22 22 23 23 24
Costa Rica 23 23 23 24 24
Iran, Islamic Rep. 23 23 24 24 24
Paraguay 24 24 25 25 25
New Zealand 25 25 25 25 25
Georgia 25 25 25 25 25
Ecuador 24 25 25 25 25
Azerbaijan 25 25 25 25 25
Mongolia 25 25 25 26 26
Peru 26 26 26 26 26
Ireland 27 26 26 26 26
Bolivia 26 26 27 28 28
Congo, Rep. 26 26 27 28 29
United Kingdom 28 28 28 27 27
South Africa 28 28 28 28 28
Jordan 29 29 28 28 28
Iraq 29 29 29 29 30
Saudi Arabia 29 30 30 30 31
Colombia 30 30 30 31 31
Greece 31 31 31 31 31
Panama 31 32 32 32 32
Mexico 32 33 33 33 33
Brazil 33 34 34 34 34
Armenia 34 34 34 34 34
Syrian Arab Republic 34 34 34 34 34
Venezuela, RB 34 34 34 34 34
Chile 34 34 34 35 35
Portugal 37 37 37 36 36
Canada 37 37 37 38 38
Argentina 40 40 40 40 40
United States 41 41 41 41 42
Korea, Rep. 43 44 45 45 46
Puerto Rico 41 44 46 48 51
Uruguay 50 50 50 50 50
Israel 50 51 52 53 54
Japan 55 56 56 56 56
United Arab Emirates 59 59 59 59 59
Australia 62 62 62 62 62
Lebanon 63 64 62 61 59
Kuwait 64 64 65 65 65
Hong Kong SAR, China 91 91 91 92 92
Singapore 97 95 96 97 99
St. Vincent and the Grenadines
American Samoa
Liechtenstein
Turkmenistan
Malawi
Cyprus
Lesotho
Burundi
Maldives
Bahrain
Latvia
Macedonia, FYR
Malta
Sri Lanka
Marshall Islands
Central African Republic
Mauritania
Tonga
Mauritius
Bermuda
Lao PDR
Antigua and Barbuda
Micronesia, Fed. Sts.
Djibouti
Moldova
Slovenia
Monaco
South Sudan
Kyrgyz Republic
St. Lucia
Montenegro
Suriname
Luxembourg
Cabo Verde
Kiribati
Timor-Leste
Jamaica
Botswana
Namibia
Tuvalu
Isle of Man
Belize
Iceland
Vanuatu
New Caledonia
West Bank and Gaza
Seychelles
Lithuania
Macao SAR, China
Serbia
Sint Maarten (Dutch part)
Sierra Leone
Nicaragua
Guyana
Slovak Republic
Guinea-Bissau
Solomon Islands
Northern Mariana Islands
Curacao
Norway
Croatia
Oman
St. Kitts and Nevis
Guam
St. Martin (French part)
Palau
Comoros
Grenada
Swaziland
Papua New Guinea
Cayman Islands
Greenland
Tajikistan
Gambia, The
Brunei Darussalam
Gabon
Togo
French Polynesia
Trinidad and Tobago
Fiji
Bosnia and Herzegovina
Faroe Islands
Turks and Caicos Islands
Qatar
Bhutan
Estonia
Benin
Eritrea
Barbados
Equatorial Guinea
Bahamas, The
Samoa
Aruba
San Marino
Virgin Islands (U.S.)
Sao Tome and Principe
Andorra
Dominica
Albania

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