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

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