Country name 1986 1987 1988 1989 1990
Italy 10 10 10 10 10
Greece 11 11 11 10 10
Spain 11 11 11 11 10
Andorra 12 11 12 13 12
Denmark 11 11 12 12 12
Japan 11 11 11 10 10
Germany 11 11 11 11 11
Luxembourg 12 11 12 12 13
Austria 12 11 12 12 12
Switzerland 12 12 12 12 13
Hungary 12 12 12 12 12
Belgium 12 12 12 12 12
Finland 12 12 13 13 13
Portugal 13 12 12 12 12
Croatia 13 13 12 12 12
Sweden 12 13 13 14 15
Hong Kong SAR, China 13 13 13 12 12
Netherlands 13 13 13 13 13
Czech Republic 13 13 13 12 13
Norway 13 13 14 14 14
Slovenia 13 13 13 12 11
Bulgaria 13 13 13 13 12
Liechtenstein 13 13 15 13 13
United Kingdom 13 14 14 14 14
France 14 14 14 14 13
Canada 15 14 15 15 15
Ukraine 16 15 14 13 13
Korea, Rep. 15 15 15 15 15
Malta 15 15 16 16 15
Australia 15 15 15 15 15
United States 16 16 16 16 17
Latvia 16 16 16 15 14
Belarus 17 16 16 15 14
Slovak Republic 17 16 16 15 15
Poland 17 16 16 15 14
Estonia 16 16 16 16 14
Lithuania 17 16 16 15 15
Ireland 17 17 16 15 15
Iceland 16 17 19 18 19
Singapore 15 17 20 18 18
Bosnia and Herzegovina 17 17 16 15 15
Barbados 17 17 16 16 16
Romania 17 17 17 16 14
Faroe Islands 17 17 18 20 20
New Zealand 16 17 17 18 18
Russian Federation 17 17 16 15 13
Montenegro 18 17 17 17 16
Cuba 17 17 17 17 17
Georgia 18 18 18 17 17
Uruguay 18 18 18 18 18
Antigua and Barbuda 19 19 19 19 19
Macedonia, FYR 19 19 19 18 18
Mauritius 19 19 20 21 21
Puerto Rico 19 20 19 19 19
Cyprus 20 20 20 19 19
Greenland 20 20 22 22 23
Thailand 21 21 20 20 19
Korea, Dem. People’s Rep. 21 21 21 21 21
Aruba 21 21 21 20 20
Moldova 22 21 20 20 19
Macao SAR, China 22 22 21 20 19
Argentina 22 22 22 22 22
Virgin Islands (U.S.) 24 22 22 22 21
Sri Lanka 23 22 22 21 21
Chile 23 23 22 22 22
Israel 23 23 23 22 22
Armenia 23 23 23 22 22
China 22 23 22 22 21
Dominica 24 23
St. Kitts and Nevis 23 24 21 22
Trinidad and Tobago 26 24 23 22 21
Bahamas, The 25 25 24 24 24
Seychelles 26 25 25 24 24
St. Martin (French part) 24 25 26 26 25
New Caledonia 25 26 25 24 26
Kazakhstan 26 26 25 23 22
Albania 26 26 26 25 25
Qatar 28 26 25 24 23
St. Vincent and the Grenadines 27 26 26 25 25
Lebanon 27 26 26 25 25
Kuwait 29 26 24 23 21
Azerbaijan 28 27 26 26 26
Guam 27 27 27 26 26
Brazil 28 27 26 25 24
Jamaica 28 27 27 26 25
Panama 28 27 27 27 26
Indonesia 29 28 27 26 26
Colombia 29 28 28 27 26
Costa Rica 29 28 28 27 27
United Arab Emirates 29 29 28 27 26
Turkey 30 29 28 27 26
Suriname 29 29 28 28 28
Malaysia 29 29 29 28 28
Myanmar 31 30 29 28 27
Mexico 30 30 30 29 29
Tunisia 31 30 29 28 25
Vietnam 30 30 30 29 29
French Polynesia 30 30 30 29 28
Fiji 31 30 30 29 29
St. Lucia 31 30 30 29 28
Venezuela, RB 31 31 30 30 29
Dominican Republic 32 31 31 30 30
South Africa 32 31 31 30 29
Ecuador 32 32 31 31 30
Bahrain 32 32 31 30 29
Grenada 32 32 31 30 28
Peru 32 32 31 31 30
Brunei Darussalam 32 32 32 32 32
Tonga 33 32 32 31 31
Morocco 33 32 31 30 29
El Salvador 33 33 32 31 31
Libya 34 33 31 30 29
Kyrgyz Republic 33 33 32 30 29
India 34 33 33 32 31
Guyana 34 34 33 33 33
Philippines 35 34 34 33 33
Samoa 35 34 34 34 33
Paraguay 36 35 35 34 34
Papua New Guinea 36 36 35 35 35
Jordan 37 36 35 35 34
Algeria 37 36 35 33 32
Micronesia, Fed. Sts. 37 36 35 35 34
Mongolia 37 36 35 34 32
Turkmenistan 36 36 36 36 35
Bolivia 37 37 36 36 35
Vanuatu 37 37 37 36 36
Egypt, Arab Rep. 38 37 36 35 33
Lesotho 38 37 36 36 35
Uzbekistan 38 37 35 33 34
Kiribati 37 37 37 37 37
Belize 38 38 37 36 36
Gabon 38 38 38 37 37
Botswana 39 38 37 36 35
Iraq 38 38 38 38 38
Bangladesh 39 38 37 36 35
Saudi Arabia 40 39 38 37 36
Nicaragua 40 39 38 37 36
Syrian Arab Republic 40 39 38 37 36
Marshall Islands 39
Congo, Rep. 39 39 39 38 38
Iran, Islamic Rep. 41 39 37 35 33
Namibia 40 39 39 39 38
Guatemala 40 40 39 39 38
Haiti 41 40 39 38 37
Nepal 40 40 39 39 39
Honduras 40 40 39 39 38
Sao Tome and Principe 40 40 40 40 40
Djibouti 40 40 40 40 40
Zimbabwe 41 40 39 38 37
Ghana 41 40 40 39 39
Bhutan 41 41 40 39 38
Solomon Islands 41 41 41 40 40
Mauritania 41 41 41 41 41
Central African Republic 42 42 42 41 41
Pakistan 42 42 42 41 40
Tajikistan 42 42 42 41 40
Cabo Verde 43 42 42 41 40
Sudan 43 42 42 42 42
Lao PDR 43 43 43 43 43
Timor-Leste 44 43 43 43 43
Oman 45 44 42 40 38
Cote d'Ivoire 44 44 44 43 43
Togo 45 44 44 43 43
Madagascar 44 45 45 45 45
Comoros 45 45 44 43 43
Nigeria 45 45 45 44 44
Tanzania 45 45 45 44 44
Senegal 45 45 44 44 44
Eritrea 46 45 44 44 43
Kenya 46 45 44 43 42
Mozambique 46 46 45 45 46
Cameroon 46 46 45 45 45
Maldives 47 46 44 43 41
Swaziland 47 46 45 44 43
Guinea-Bissau 47 47 46 46 45
Sierra Leone 47 47 47 47 46
Equatorial Guinea 46 47 47 47 47
Liberia 47 47 46 46 45
Benin 47 47 47 47 46
Zambia 47 47 47 47 46
Guinea 47 47 47 47 47
Cambodia 49 47 46 44 42
Somalia 47 47 48 48 48
Congo, Dem. Rep. 47 48 48 48 48
South Sudan 48 48 48 48 47
Burkina Faso 48 48 48 48 47
Gambia, The 49 48 48 48 47
Ethiopia 49 48 48 48 48
Mali 49 49 49 49 49
Uganda 50 50 50 50 50
Afghanistan 50 50 49 49 49
Chad 50 51 51 51 51
Rwanda 52 51 50 49 48
Burundi 52 51 51 51 50
Malawi 52 51 51 50 50
Angola 53 53 53 53 53
Yemen, Rep. 54 54 53 53 52
Niger 55 55 55 55 55
Monaco
Isle of Man 12 12
Tuvalu
Cayman Islands
Serbia
Turks and Caicos Islands
Sint Maarten (Dutch part)
Palau 22
Northern Mariana Islands
American Samoa
West Bank and Gaza 45
Bermuda 15 15
San Marino
Curacao

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