Country name 1986 1987 1988 1989 1990
Ethiopia 0 0 0 0 0
Angola 0 0 0 0 0
Lao PDR 7 10 14
Mozambique 7 17 21 21 22
Namibia 8 13 15 15 27
Chad 8 9 7 8 7
Uganda 8 10 11 11 13
Madagascar 9 10 13 13 17
Ghana 9 10 11 13 14
Puerto Rico 10 14 16 17 17
Guatemala 10 14 14 14 14
Sierra Leone 11 10 6 8 13
Uruguay 11 14 15 12 12
Niger 12 12 19 14 11
Burundi 12 23 15 16 15
Senegal 12 15 11 9 9
Cote d'Ivoire 12 12 13 9 7
Malawi 12 17 21 25 23
Myanmar 13 12 13 9 13
Central African Republic 13 13 11 12 13
Barbados 13 13 14 15 15
Congo, Dem. Rep. 13 14 14 14 9
El Salvador 13 12 13 15 14
Benin 13 13 16 12 14
Bolivia 14 14 14 12 13
Honduras 14 17 21 19 23
Sudan 14 15 4 5 11
Vietnam 14 14 18 15 13
Guinea 15 16 17 17 25
Philippines 15 17 19 22 24
Nigeria 16 13 10 12 14
Rwanda 16 16 14 13 15
Costa Rica 16 20 18 18 18
Bangladesh 16 15 16 16 16
Gambia, The 17 17 16 20 22
Mali 17 20 19 21 19
Nicaragua 17 16 27 27 19
Jamaica 17 21 24 27 26
Panama 17 18 8 6 17
Argentina 17 20 19 16 14
Colombia 18 19 21 18 19
Zimbabwe 18 15 19 15 17
Fiji 18 16 13 13 14
Ireland 18 17 16 18 22
Bahamas, The 18 19 31 29
Solomon Islands 19 23 24 20 20
Mexico 19 19 23 23 23
Belgium 19 20 22 24 24
Pakistan 19 19 18 19 19
Togo 19 18 16 17 27
Turkey 19 26 25 23 25
Luxembourg 19 21 22 22 23
Chile 19 22 23 25 25
South Africa 19 16 20 21 18
Brazil 19 22 23 27 20
Israel 19 20 18 17 25
Saudi Arabia 19 18 20 19 15
Papua New Guinea 20 21 27 23 24
Dominican Republic 20 24 25 28 25
Jordan 20 23 23 23 31
Iceland 20 22 23 20 21
Swaziland 20 15 24 24 15
Burkina Faso 20 19 19 20 19
Nepal 20 21 22 22 18
Peru 20 20 24 17 14
Belize 20 22 25 30 26
United Kingdom 21 22 24 25 22
Venezuela, RB 21 25 28 13 10
New Caledonia 21 31
Trinidad and Tobago 21 19 13 16 14
Botswana 21 16 24 36 37
Italy 21 22 22 22 22
Spain 22 23 25 26 27
France 22 22 23 24 24
Kenya 22 24 25 25 24
Mauritius 22 25 31 31 30
Canada 22 22 24 24 21
Suriname 22 26 17 21 11
Kuwait 22 18 16 12 18
Iran, Islamic Rep. 22 20 17 23 33
Dominica 22 23 31 41 41
St. Vincent and the Grenadines 23 24 22 22 25
Seychelles 23 20 26 27 25
Netherlands 23 23 24 25 24
Germany 23 22 23 24 25
Portugal 23 27 30 28 28
Malta 23 25 26 27 31
Hong Kong SAR, China 23 26 28 27 27
St. Kitts and Nevis 23 27 36 37 44
India 23 23 24 24 25
Ecuador 24 25 26 27 24
Comoros 24 25 22 17 20
Sri Lanka 24 23 23 22 22
United States 24 24 23 22 21
Egypt, Arab Rep. 24 26 35 32 29
Guinea-Bissau 24 35 45 39 30
Malaysia 24 21 24 28 32
Austria 24 24 26 27 27
Syrian Arab Republic 24 20 15 17 17
Tonga 24 22 23 20 18
St. Lucia 25 25 30 35 26
Denmark 25 23 21 22 21
Sweden 25 26 27 30 29
New Zealand 25 23 21 23 20
Somalia 25 33 24 30 16
Cameroon 26 25 21 17 18
Morocco 26 23 23 27 29
Cuba 26 23 24 26 25
Thailand 26 28 33 35 41
Cyprus 26 26 27 31 27
Finland 26 27 29 32 30
Tunisia 27 23 21 24 27
Bahrain 27 25 20 25 16
Korea, Rep. 27 28 29 31 35
Japan 28 28 31 32 32
Macao SAR, China 28 27 28 27 25
Australia 29 27 28 30 29
Vanuatu 29 33 27 33 33
Switzerland 29 30 31 33 33
Congo, Rep. 29 20 19 14 16
Indonesia 30 30 29 33 31
Mauritania 30 28 28 19 20
Georgia 30 29 31 28 31
Grenada 30 33 34 34 38
Greece 30 23 27 27 28
Albania 31 28 29 32 29
Oman 32 19 16 12 12
Norway 33 31 30 27 25
Tajikistan 33 32 32 29 25
Algeria 34 28 28 30 29
Antigua and Barbuda 36 46 40 41 32
Bulgaria 36 33 34 33 26
Singapore 37 37 33 34 36
China 38 37 38 37 36
Lesotho 39 40 45 52 56
Guyana 40 31 21 22 31
Bhutan 42 37 38 32 30
Gabon 46 26 37 26 22
Mongolia 64 51 47 48 29
Equatorial Guinea 64 79 76 76 118
Kiribati 73 73 61 61 93
Northern Mariana Islands
St. Martin (French part)
Libya 19
Monaco
Moldova 25
Korea, Dem. People’s Rep.
Micronesia, Fed. Sts.
Djibouti 14
Palau
Iraq
Cambodia
Slovak Republic 33
Cabo Verde
Azerbaijan 27
Paraguay
Hungary
Armenia 47
Montenegro
Turks and Caicos Islands
Lithuania
Curacao
Eritrea
Kazakhstan
Belarus 27
Andorra
Sint Maarten (Dutch part)
Marshall Islands
Slovenia
Romania 30
Maldives
Russian Federation 34 30
South Sudan
Bosnia and Herzegovina
Czech Republic 24
Samoa
Faroe Islands
San Marino
Haiti
Sao Tome and Principe
Macedonia, FYR 19
Aruba
Guam
Liberia
Liechtenstein
Cayman Islands
Tanzania 26
Croatia
Timor-Leste
Bermuda
Greenland
Serbia
Kyrgyz Republic 31 31 35 24
Brunei Darussalam 19 19
Turkmenistan 35 34 35 40
Ukraine 29 27
Tuvalu
Poland 24
Isle of Man
United Arab Emirates
Estonia
French Polynesia
Qatar
Uzbekistan 29 27 32 31
Virgin Islands (U.S.)
American Samoa
Yemen, Rep. 12
Latvia
West Bank and Gaza
Afghanistan
Zambia
Lebanon 18

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