Country name 1985 1986 1987 1988 1989
San Marino 8 9 8 7 7
Austria 12 10 10 11 11
Denmark 12 12 11 12 11
Luxembourg 13 12 13
Israel 12 13 13 14 14
Qatar 13 13 14 12 12
Italy 14 14 13 13 13
Cuba 15 14 13 13 12
Virgin Islands (U.S.) 14
United States 14 14
Belgium 17 17
Brunei Darussalam 16 17 14 14
Canada 17 17 17 16 16
Netherlands 19 17 17 17 17
Australia 17 17 17 17
Portugal 17 17 16
American Samoa 21 17 17 16 18
Georgia 17
Samoa 18
Kuwait 18 18 18 18 18
Latvia 19 18 20 19 18
Bahamas, The 21 19
Kyrgyz Republic 19
New Caledonia 20 19 20 20 20
Guam 20 20 20 20
Argentina 20 20 19 19
Bahrain 19 20 20 21 22
France 22 21 21 21 21
Solomon Islands 26 21
Uruguay 25 22 23 22
Iran, Islamic Rep. 21 22 28 29 30
Trinidad and Tobago 22 22 23 24 25
St. Kitts and Nevis 23 22 29 29 23
Panama 25 22 23 23 23
Tonga 23 22 22
Mauritius 22 23 22 22 22
Cyprus 22 23 23 22 22
Ghana 28 23 24 24 26
Suriname 25 23 23 23 23
Greece 23 23 23 22 21
Malta 23 24 24 23 22
Iraq 24 24 24 25 23
Japan 24 24 23 23 22
Uzbekistan 24 24
Gambia, The 25 24 29 28
Paraguay 25 25 25 25 25
United Arab Emirates 24 25 24 25 18
China 25 25 24 24 23
Lao PDR 27 25 27
Spain 25 26 25
Indonesia 26 25 24 24 24
Lithuania 25 20
Venezuela, RB 26 26 26
Kazakhstan 26 23
Syrian Arab Republic 27 26 25 26 27
Moldova 26 25
Singapore 27 26 26 26 26
Russian Federation 27 23
Oman 29 27 26 26 27
Ireland 27 27 27 27 28
Romania 27 27 27 25
Hong Kong SAR, China 27 28 27 27 27
Algeria 30 28 27 27 28
Morocco 27 28 27 26 25
Kiribati 29 29 29 30 28
Czech Republic 29 29 29 29 26
Colombia 30 29 30 30 30
Uganda 34 30 32 32 29
Mongolia 30 31 31 30
St. Lucia 30 30 30 31 31
Papua New Guinea 30 31 32 32
Philippines 31 31 31 32 33
Turkey 31 31 31 31 31
Jordan 32 31 29 30 28
Angola 30 31 33 33 33
Tunisia 34 32 32 31 30
Egypt, Arab Rep. 32 31 30 20
Botswana 32 32 32 32 32
Costa Rica 31 32 31 32 32
Nicaragua 33 32 32 34 32
Ecuador 32 32 32 31 29
Benin 33 33 33 33 35
Swaziland 34 33 33 33 32
Peru 35 33 32 31 29
Tanzania 34 33 33 33 33
Mexico 35 34 33 32 31
Mali 35 34 35 38 43
Vietnam 35 34 35 35 34
Comoros 31 35 35 36 38
Nepal 35 35 35 37 40
Jamaica 35 35 36 34 33
Guatemala 37 36 35
Cote d'Ivoire 36 36 36 36 37
Guinea 36 36 36 40 39
Niger 36 37 38 40
Bhutan 37 37 37
Cambodia 38 38 35 34 36
Haiti 40 38 36
Korea, Rep. 40 38 38 37 36
Cabo Verde 39 34 33 33
Zimbabwe 40 39 39 38 38
Sierra Leone 34 39 31 30
Honduras 39
Pakistan 38 39 40 41 41
Nigeria 40 42 44 41 37
Zambia 49 46 46 44
Gabon 47 46 47 46 48
Togo 44 46 50 52 55
Senegal 46 46 51 54 51
Bangladesh 47 48 48 58 60
Ethiopia 50 48 48 49 43
Rwanda 47 48 49 50 50
Mauritania 46 51 50 50 49
Cameroon 51 51 50 51 51
Myanmar 53 54 58 52 54
Lesotho 55 55 56 56 56
Burundi 54 56 62 71 69
Burkina Faso 56 58 68 65 57
Mozambique 62 61 62 56 58
Congo, Rep. 61 61 64 66 63
Central African Republic 66 60 63 70
Chad 64 71 68
Barbados 21 18
Liechtenstein
Macao SAR, China
Micronesia, Fed. Sts.
Slovak Republic
Libya
Turkmenistan
Monaco
Andorra
Liberia
South Africa
Montenegro
Malawi
Afghanistan 36
Ukraine
Marshall Islands
Armenia
Lebanon
Curacao
Chile
Croatia
Macedonia, FYR
Madagascar 38 40 40
Switzerland
St. Vincent and the Grenadines 18
Namibia
Maldives
Bulgaria
Taiwan, China
Korea, Dem. Rep.
Kenya
Isle of Man
Bosnia and Herzegovina
New Zealand 20 19 19
Tuvalu
India
United Kingdom 18 20 20 20
Iceland
Vanuatu 26
Hungary
West Bank and Gaza
Northern Mariana Islands
Malaysia 24 22 21 21
Norway
Sint Maarten (Dutch part)
Guyana 36
Slovenia
Guinea-Bissau 25 25 25
Somalia
Sri Lanka
South Sudan
Palau
Grenada 23 22 23
Congo, Dem. Rep. 37
Greenland
St. Martin (French part)
Germany
Sudan
French Polynesia 20 14 14
Finland
Sweden
Poland
Cayman Islands
Thailand 19 20 20 20
Tajikistan
Fiji
Puerto Rico
Timor-Leste
Faeroe Islands
Estonia
Brazil
Eritrea 41
Bolivia
Equatorial Guinea
Turks and Caicos Islands
El Salvador
Bermuda 17
Dominican Republic 43
Belize
Sao Tome and Principe 31 30 29
Belarus
Saudi Arabia
Azerbaijan
Dominica
Aruba
Serbia
Antigua and Barbuda
Seychelles
Yemen, Rep.
Djibouti 44 44 44 44
Albania

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