Country name 1980 1981 1982 1983
San Marino 12 10 9 9
Andorra 10
Israel 12 12 12 12
Austria 16 15 14 13
Luxembourg 14 14 14 14
Qatar 14 15 14 14
Finland 16 14 14 15
Italy 16 16 16 15
Canada 16
Brunei Darussalam 18 18 16 16
Cuba 18 17 17 16
Libya 20 18 17
Bermuda 23 19 18 18
Portugal 18 18 18 18
Samoa 20 21 18 18
United Kingdom 19 19 18
Bahrain 20 19 19 18
Kuwait 19 19 18 19
Tonga 24 25 21 20
Latvia 20 20 20
Netherlands 24 23 23 20
Iran, Islamic Rep. 27 20
New Caledonia 21 20 20
Guam 20 20 20 20
Malta 21 21 21 20
Barbados 20
Uruguay 22 21 22 21
Thailand 21
Cyprus 23 22 21 21
Bahamas, The 26 26 28 21
Mauritius 20 20 21 21
French Polynesia 21 19 19 22
United Arab Emirates 16 16 21 22
Guinea-Bissau 25 23 23 22
Trinidad and Tobago 26 24 23 23
Grenada 32 23 23 23
Gambia, The 27 24 23
Vanuatu 24 21 24
Greece 25 24 23 24
Iraq 28 28 27 24
Japan 25 25 25 25
Solomon Islands 25 25 26 25
Suriname 23 27 27 25
Oman 23 23 25 25
China 27 27 26 25
Paraguay 27 27 26 26
Sao Tome and Principe 29 28 27 26
Malaysia 27 26 26 26
Panama 27 27 26 26
Venezuela, RB 28 27 27 26
Spain 28 28 27
Syrian Arab Republic 29 28 28 27
Hong Kong SAR, China 30 30 30 28
Ireland 29 29 28 28
Turkey 27 28 29
Indonesia 32 32 29
Lao PDR 31 30 30 29
Singapore 31 30 28 29
Czech Republic 29 29 29
Ghana 28 30 30 29
Colombia 31 31 30 30
Kiribati 30 30 31 30
Botswana 32 32 32 31
Egypt, Arab Rep. 33 34 31
Guinea 38 36 32 31
Philippines 32 32 31 32
Jordan 32 32 31 32
Costa Rica 28 33 32 32
Mongolia 32 32 32
St. Lucia 32 31 31 32
Algeria 36 35 34 32
Swaziland 34 33 33 33
Sierra Leone 34 33 35 34
Sudan 34 34 33 34
Jamaica 41 41 34
Peru 37 37 38 35
Pakistan 37 36 36 35
Nicaragua 35 36 35
Uganda 34 35 36 35
Bhutan 36 35
Guatemala 34 37 35 36
Morocco 38 38 36 36
Ecuador 36 36 35 36
Guyana 33 33 37 36
Cote d'Ivoire 39 39 36 36
Mexico 39 37 37
Angola 31 37
Nigeria 36 35 37 37
Honduras 37 39 37 37
Mali 42 42 40 37
Benin 55 48 39 38
Tunisia 39 39 38 38
Comoros 46 38
Madagascar 46 44 41 39
Zimbabwe 44 45 42 39
Tanzania 43 40 40
Niger 39 41 42 40
Haiti 43 44 44 43
Nepal 38 48 46 43
Senegal 43 46 43 44
Gabon 43 45 45 44
Korea, Rep. 48 48 46 44
Mauritania 46 41 44 45
Cambodia 44 48 46
Dominican Republic 46
Zambia 49 48 48 47
Burundi 35 37 39 47
Rwanda 56 52 50 47
Togo 54 55 52 48
Djibouti 42 40 41 48
Cameroon 52 52 51 49
Lesotho 48 48 52 51
Bangladesh 54 55 51
Myanmar 48 52 56 55
Mozambique 81 69 56
Congo, Rep. 56 54 58 58
Ethiopia 59 64 63 59
Burkina Faso 53 54 60 60
Central African Republic 61 60 61 62
Bosnia and Herzegovina
Maldives
Greenland
Seychelles
Germany
Marshall Islands
Turkmenistan
Liberia
Curacao
Armenia
Aruba
Georgia 19
Malawi
Timor-Leste
Micronesia, Fed. Sts.
Moldova 29
Ukraine
Monaco
Liechtenstein
France 20 21
Korea, Dem. Rep.
Montenegro
Lithuania 25
Cayman Islands 19
St. Martin (French part)
Hungary
Macedonia, FYR
Sweden
Macao SAR, China
India
Namibia
Cabo Verde 42 40
Afghanistan
Fiji 24
Tuvalu
Faeroe Islands
Albania
New Zealand 17 21
Bolivia
Slovak Republic
American Samoa 17
Congo, Dem. Rep.
Saudi Arabia
South Africa
Serbia
Chile
Croatia
St. Kitts and Nevis 25
Sint Maarten (Dutch part)
Iceland
Slovenia
Estonia
Somalia 31
Northern Mariana Islands
South Sudan
Norway
Sri Lanka
Eritrea
Chad
Equatorial Guinea 69 68
St. Vincent and the Grenadines 18
Palau
El Salvador
Belarus
Papua New Guinea 30 31
Switzerland
Kyrgyz Republic 28
Tajikistan
Dominica
Kenya
Vietnam 36 39
Kazakhstan
West Bank and Gaza
Isle of Man
Australia 19
Bulgaria
Puerto Rico
Turks and Caicos Islands
Antigua and Barbuda
Belgium 19 18 18
Romania 26
Brazil
Russian Federation 28
United States
Kosovo
Uzbekistan 24
Denmark
Belize
Poland
Virgin Islands (U.S.) 14
Azerbaijan
Yemen, Rep.
Argentina 20 20 20
Lebanon 18 17

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