Country name 1986 1987 1988 1989 1990
San Marino 9 8 7 7 6
Austria 10 10 11 11 11
Denmark 12 11 12 11 11
Luxembourg 13 12 13
Israel 13 13 14 14 14
Italy 14 13 13 13 12
Cuba 14 13 13 12 12
Qatar 13 14 12 12 12
Portugal 17 16 15
Australia 17 17 17 17
Canada 17 17 16 16 16
Netherlands 17 17 17 17 17
St. Vincent and the Grenadines 18
Kuwait 18 18 18 18 18
Argentina 20 19 19
New Zealand 20 19 19 18
Latvia 18 20 19 18 15
Thailand 20 20 20 20
Bahrain 20 20 21 22 21
United Kingdom 20 20 20 20
France 21 21 21 21
Tonga 22 22 24
Grenada 22 23 25
Mauritius 23 22 22 22 21
Malaysia 22 21 21 20
Panama 22 23 23 23 23
Cyprus 23 23 22 22 21
Greece 23 23 22 21 20
Trinidad and Tobago 22 23 24 25
Suriname 23 23 23 23 22
Japan 24 23 23 22 21
Iraq 24 24 25 23
Ghana 23 24 24 26 27
Malta 24 24 23 22 23
China 25 24 24 23 22
United Arab Emirates 25 24 25 18 18
Indonesia 25 24 24 24 23
Guinea-Bissau 25 25
Paraguay 25 25 25 25 25
Syrian Arab Republic 26 25 26 27 26
Spain 25 26 25 23
Oman 27 26 26 27 28
Singapore 26 26 26 26 26
Venezuela, RB 26 26
Ireland 27 27 27 28 27
Morocco 28 27 26 25 25
Romania 27 27 27 25
Algeria 28 27 27 28 28
Hong Kong SAR, China 28 27 27 27
Iran, Islamic Rep. 22 28 29 30
Gambia, The 24 29 28 31
Kiribati 29 29 30 28 29
St. Kitts and Nevis 22 29 29 23 22
Jordan 31 29 30 28
Czech Republic 29 29 29 26 24
Sao Tome and Principe 30 29 35
St. Lucia 30 30 31 31 29
Colombia 29 30 30 30 30
Mongolia 30 31 31 30 30
Turkey 31 31 31 31 30
Papua New Guinea 30 31 32 32 32
Egypt, Arab Rep. 32 31 30 20 25
Philippines 31 31 32 33 33
Costa Rica 32 31 32 32 32
Uganda 30 32 32 29 29
Peru 33 32 31 29 29
Tunisia 32 32 31 30 30
Nicaragua 32 32 34 32 33
Ecuador 32 32 31 29 30
Botswana 32 32 32 32 32
Mexico 34 33 32 31 31
Tanzania 33 33 33 33 35
Swaziland 33 33 33 32 33
Benin 33 33 33 35 31
Angola 31 33 33 33
Cabo Verde 39 34 33 33 33
Comoros 35 35 36 38 36
Guatemala 36 35
Mali 34 35 38 43 45
Vietnam 34 35 35 34 34
Cambodia 38 35 34 36 35
Nepal 35 35 37 40 39
Cote d'Ivoire 36 36 36 37 36
Guinea 36 36 40 39 38
Haiti 38 36
Jamaica 35 36 34 33 34
Congo, Dem. Rep. 37
Bhutan 37 37 37
Korea, Rep. 38 38 37 36 36
Niger 37 38 40 41
Zimbabwe 39 39 38 38 36
Pakistan 39 40 41 41 41
Djibouti 44 44 44 44
Nigeria 42 44 41 37 41
Zambia 46 46 44 44
Gabon 46 47 46 48
Bangladesh 48 48 58 60 63
Ethiopia 48 48 49 43 41
Rwanda 48 49 50 50 50
Mauritania 51 50 50 49 44
Cameroon 51 50 51 51 51
Togo 46 50 52 55 56
Senegal 46 51 54 51 58
Lesotho 55 56 56 56 55
Myanmar 54 58 52 54 45
Central African Republic 66 60 63 70 90
Mozambique 61 62 56 58 55
Burundi 56 62 71 69 66
Congo, Rep. 61 64 66 63 64
Burkina Faso 58 68 65 57 55
Kazakhstan 26 23 21
Chad 71 68 67
Azerbaijan
American Samoa
Brazil
Korea, Dem. People’s Rep.
West Bank and Gaza
Belarus
Turks and Caicos Islands
Madagascar 40 40 40
Samoa 18
Malawi
Solomon Islands 21 19
Bahamas, The 19
Albania
Maldives
Isle of Man
Bermuda
India
Andorra
Marshall Islands
Russian Federation 27 23 23
Iceland
Uzbekistan 24 24 24
Hungary
Slovak Republic
Honduras 39 35
South Africa
Micronesia, Fed. Sts.
Barbados 18 18
Switzerland
Aruba
Moldova 26 25 24
Monaco
Tajikistan
Guyana
Bosnia and Herzegovina
Montenegro
Belgium 17
Guam
Lao PDR 25 27 28
Kenya
Puerto Rico
Kyrgyz Republic 19
Dominica
Chile
Curacao
Seychelles
Croatia
Namibia
Saudi Arabia
Greenland
Serbia
Antigua and Barbuda
Sierra Leone 39 31 30 35
New Caledonia
Sint Maarten (Dutch part)
Germany
Slovenia
Georgia 17
Somalia
Sri Lanka
South Sudan
French Polynesia
Finland
Cayman Islands
Northern Mariana Islands
St. Martin (French part)
Norway
Sudan
Fiji
Faroe Islands
Sweden
Palau
Bulgaria
Estonia
Brunei Darussalam 17 14 14
Eritrea 41 38
Timor-Leste
Equatorial Guinea
Bolivia
El Salvador
Belize
Dominican Republic
Turkmenistan
Poland
Tuvalu
Liberia
Ukraine
United States 14
Libya
Liechtenstein
Uruguay 22 23 22 22
Lithuania 25 20 19
Vanuatu 26
Armenia
Macao SAR, China
Virgin Islands (U.S.)
Macedonia, FYR
Yemen, Rep.
Afghanistan 36 41
Lebanon

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