Country name 1981 1982 1983 1984 1985
Germany 18 17 17 16 16
Luxembourg 18 18 18 17 17
Switzerland 19 19 19 18 18
Sweden 19 19 19 18 18
Austria 20 19 19 19 18
Belgium 20 19 19 19 19
Denmark 20 20 19 19 18
Finland 20 20 20 19 19
United Kingdom 21 20 20 19 19
Italy 21 21 20 20 19
Netherlands 22 21 21 20 19
Latvia 20 21 21 21 21
Norway 22 21 21 20 20
Croatia 21 21 21 21 21
France 22 22 21 21 21
Ukraine 21 22 22 22 22
Canada 22 22 22 21 21
Estonia 22 22 22 22 22
Bulgaria 22 22 22 22 22
United States 22 22 22 22 22
Greece 23 22 22 22 21
Russian Federation 22 22 22 22 23
Hungary 22 22 22 22 22
Japan 23 23 23 22 22
Belarus 23 23 23 23 23
Lithuania 23 23 23 23 23
Slovenia 23 23 23 23 22
Czech Republic 24 24 24 24 23
Hong Kong SAR, China 25 24 24 24 23
Malta 24 24 24 24 24
Australia 25 24 24 24 24
Portugal 25 25 24 24 24
Spain 26 25 25 24 23
Macao SAR, China 24 25 25 25 25
Cyprus 25 25 25 25 25
Poland 24 25 25 25 25
Aruba 26 25 25 25 25
Singapore 26 26 25 25 24
Georgia 25 25 25 25 25
New Zealand 27 26 26 25 25
Romania 27 27 26 26 25
Montenegro 27 27 26 26 26
Slovak Republic 26 26 26 27 27
Iceland 27 27 27 26 26
Uruguay 27 27 27 27 27
Moldova 27 27 27 27 27
Bosnia and Herzegovina 28 27 27 27 26
Barbados 29 28 28 27 27
Cuba 30 29 28 27 26
Macedonia, FYR 29 29 28 28 28
Curacao 30 29 29 28 28
Armenia 30 30 30 30 30
United Arab Emirates 29 29 30 31 32
Ireland 30 30 30 30 30
Qatar 32 31 30 30 29
Puerto Rico 31 31 31 30 30
Argentina 31 31 31 31 31
Antigua and Barbuda 32 32 31 30 30
Chile 33 32 32 31 31
Korea, Rep. 33 32 32 31 30
Kazakhstan 32 32 32 32 32
China 35 34 33 32 31
Guam 34 33 33 32 32
Azerbaijan 34 33 33 33 33
Israel 33 33 33 33 33
Korea, Dem. Rep. 35 34 33 32 31
Mauritius 35 34 34 33 32
Bahrain 34 34 34 34 34
Trinidad and Tobago 34 34 34 34 34
Virgin Islands (U.S.) 35 34 34 34 34
Albania 35 35 35 34 34
Sri Lanka 36 35 35 35 34
Bahamas, The 36 36 36 35 35
New Caledonia 36 36 36 35 35
Costa Rica 37 36 36 35 35
Seychelles 38 37 36 36 35
Suriname 38 37 36 36 35
Thailand 39 38 37 36 35
Kyrgyz Republic 37 37 37 37 37
Equatorial Guinea 41 39 37 36 35
Brazil 38 38 38 37 37
Lebanon 39 38 38 37 37
French Polynesia 39 39 38 37 36
Kuwait 40 39 38 37 37
Brunei Darussalam 38 38 38 38 38
Malaysia 39 38 38 38 38
Jamaica 40 39 38 38 37
Grenada 39 39 39 38 38
Timor-Leste 38 38 39 39 40
Colombia 40 40 39 38 38
Fiji 39 39 39 39 39
India 39 39 39 39 39
Turkey 40 40 39 39 39
Kiribati 40 40 39 39 39
Panama 40 40 39 39 38
Venezuela, RB 41 40 40 39 39
Vietnam 40 40 40 39 39
Indonesia 41 40 40 40 39
Egypt, Arab Rep. 40 40 40 40 40
Tunisia 41 41 40 40 39
Gabon 40 40 40 40 41
Uzbekistan 41 40 40 41 40
Myanmar 41 41 41 40 40
Turkmenistan 41 41 41 41 41
Ecuador 42 41 41 40 40
South Africa 41 41 41 41 40
Guyana 42 42 41 40 39
Peru 42 42 41 41 40
Tonga 42 42 41 41 41
St. Vincent and the Grenadines 43 42 41 41 40
Dominican Republic 42 42 41 41 41
St. Lucia 43 42 41 41 41
Cambodia 41 41 41 42 42
Haiti 41 42 42 42 42
Paraguay 42 42 42 42 41
Nepal 42 42 42 42 42
Bolivia 42 42 42 42 42
Morocco 43 43 42 42 42
Philippines 43 43 42 42 42
Central African Republic 42 42 42 42 42
Tajikistan 43 43 43 43 43
Guinea 42 42 43 43 43
Pakistan 43 43 43 43 43
Mongolia 43 43 43 42 42
Sierra Leone 42 43 43 43 43
El Salvador 43 43 43 43 42
Guinea-Bissau 42 43 43 43 44
Bhutan 43 43 43 44 44
Saudi Arabia 44 44 44 43 43
Mexico 45 44 44 43 43
Somalia 44 44 44 44 44
Samoa 46 45 44 43 43
Vanuatu 44 44 44 44 44
Bangladesh 45 45 44 44 44
South Sudan 45 45 44 44 44
Lao PDR 44 44 44 44 44
Lesotho 44 45 45 45 45
Nigeria 44 45 45 45 45
Iran, Islamic Rep. 44 44 45 45 45
Congo, Rep. 45 45 45 45 45
Congo, Dem. Rep. 45 45 45 45 45
Mali 44 45 45 45 45
Mozambique 44 45 45 45 45
Papua New Guinea 45 45 45 45 45
Mauritania 45 45 45 45 45
Burundi 45 45 45 45 46
Ghana 46 45 45 45 45
Djibouti 46 46 45 45 45
Belize 46 46 45 45 45
Cameroon 45 45 45 46 46
Benin 45 45 45 46 46
Liberia 45 45 45 46 45
Oman 45 45 45 46 46
Cabo Verde 46 46 46 45 45
Cote d'Ivoire 46 46 46 45 45
Algeria 46 46 46 46 45
Guatemala 46 46 46 46 46
Maldives 45 46 46 46 46
Comoros 46 46 46 46 46
Ethiopia 45 46 46 46 46
Madagascar 46 46 46 46 46
Chad 45 46 46 46 46
Libya 47 47 46 45 45
Gambia, The 46 46 46 46 46
Burkina Faso 46 46 46 47 47
Micronesia, Fed. Sts. 47 47 46 46 46
Eritrea 46 46 46 46 46
Honduras 47 47 47 46 46
Botswana 47 47 47 46 46
Iraq 47 47 47 46 46
Tanzania 47 47 47 47 46
Togo 47 47 47 47 47
Afghanistan 46 46 47 47 47
Sudan 47 47 47 47 47
Namibia 47 47 47 47 47
Nicaragua 47 47 47 47 47
Senegal 47 47 47 47 47
Angola 47 47 47 48 47
Malawi 47 48 48 48 48
Sao Tome and Principe 48 48 48 47 48
Uganda 48 48 48 48 48
Solomon Islands 48 48 48 48 48
Niger 48 48 48 48 48
Jordan 49 48 48 48 47
Zambia 48 48 48 48 48
Zimbabwe 49 49 48 48 48
Syrian Arab Republic 49 49 49 49 48
Swaziland 49 49 49 49 49
Rwanda 48 49 49 49 50
Kenya 50 50 50 50 50
Yemen, Rep. 50 50 50 50 51
Sint Maarten (Dutch part)
Isle of Man
Cayman Islands
Dominica
Bermuda
Liechtenstein
Serbia
Andorra
Monaco
St. Kitts and Nevis
Turks and Caicos Islands
American Samoa
Tuvalu
Northern Mariana Islands
Faeroe Islands
Marshall Islands
San Marino
West Bank and Gaza
Greenland
Palau
St. Martin (French part)

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