Country name 1985 1986 1987 1988 1989
Germany 16 16 16 16 16
Luxembourg 17 17 17 17 17
Switzerland 18 18 17 17 17
Austria 18 18 18 18 17
Sweden 18 18 18 18 18
Denmark 18 18 18 17 17
Belgium 19 18 18 18 18
Italy 19 19 18 18 17
United Kingdom 19 19 19 19 19
Netherlands 20 19 19 19 18
Finland 19 19 19 19 19
Norway 20 20 19 19 19
France 21 21 21 20 20
Greece 21 21 21 20 20
Japan 22 21 20 20 19
Croatia 21 21 21 21 20
Canada 21 21 21 21 21
Latvia 21 21 21 21 21
Bulgaria 22 21 21 21 21
Hungary 22 21 21 21 21
United States 22 22 22 22 22
Ukraine 22 22 22 22 22
Slovenia 22 22 22 22 21
Estonia 22 22 22 22 22
Spain 23 23 22 21 21
Lithuania 23 23 23 23 23
Russian Federation 23 23 23 23 23
Hong Kong SAR, China 23 23 23 22 22
Belarus 23 23 23 23 23
Portugal 24 23 22 22 21
Czech Republic 23 23 23 22 22
Australia 24 23 23 23 22
Singapore 24 24 23 22 22
Romania 25 24 24 24 24
New Zealand 25 24 24 24 23
Aruba 25 24 25 25 25
Malta 25 25 25 25 25
Bosnia and Herzegovina 25 25 25 25 25
Georgia 25 25 25 25 25
Cyprus 25 25 25 25 25
Macao SAR, China 25 25 25 25 25
Poland 26 26 26 25 25
Cuba 26 26 25 24 24
Iceland 26 26 26 25 25
Barbados 27 26 25 25 24
Montenegro 26 26 26 26 26
Slovak Republic 27 26 26 26 26
Uruguay 27 27 27 26 26
Macedonia, FYR 28 27 27 27 26
Moldova 27 27 28 28 28
Curacao 28 27 27 27 27
Qatar 29 29 29 29 28
Ireland 29 29 28 28 28
Puerto Rico 30 29 29 28 28
Korea, Rep. 30 29 28 27 26
Antigua and Barbuda 30 29 29 29 30
Korea, Dem. Rep. 31 30 29 28 27
Armenia 30 30 30 30 30
China 31 30 30 30 29
Chile 31 31 30 30 30
Argentina 31 31 31 31 31
Mauritius 32 31 31 30 29
Guam 32 32 31 30 30
Kazakhstan 32 32 32 32 32
United Arab Emirates 32 32 32 32 32
Israel 33 33 32 32 32
Azerbaijan 33 33 33 34 34
Virgin Islands (U.S.) 34 33 32 31 30
Bahrain 34 33 33 33 33
Thailand 35 34 33 32 31
Sri Lanka 34 34 33 33 33
Seychelles 34 34 34 35 35
Trinidad and Tobago 34 34 34 34 34
Bahamas, The 35 34 34 33 33
New Caledonia 35 35 34 33 32
Equatorial Guinea 35 35 35 36 37
Suriname 36 35 35 34 34
Albania 36 36 35 35 34
Costa Rica 36 36 36 36 36
French Polynesia 36 36 36 36 36
Lebanon 37 36 36 35 35
Kuwait 37 36 36 36 36
Brazil 37 37 36 36 36
Jamaica 37 37 36 36 35
Brunei Darussalam 38 37 36 36 35
Kyrgyz Republic 37 37 37 37 37
Guyana 39 38 37 36 35
Colombia 38 38 37 37 37
Panama 38 38 37 37 36
Grenada 38 38 38 39 39
Malaysia 38 38 38 38 37
Turkey 39 38 38 37 37
India 38 38 38 38 38
Indonesia 39 39 38 37 37
Vietnam 39 39 38 38 38
Venezuela, RB 39 39 39 38 38
Kiribati 39 39 39 40 40
Fiji 39 39 39 39 39
St. Vincent and the Grenadines 40 39 39 39 38
Ecuador 40 40 39 39 39
Myanmar 40 40 39 39 38
Egypt, Arab Rep. 40 40 40 40 40
Peru 40 40 39 39 39
Tunisia 40 40 39 39 39
St. Lucia 41 40 39 38 37
Dominican Republic 40 40 40 39 39
South Africa 40 40 40 40 39
Timor-Leste 40 40 40 40 40
Turkmenistan 41 40 40 41 41
Tonga 41 41 40 40 40
Uzbekistan 41 41 41 41 41
Gabon 41 41 41 41 41
Mexico 42 41 41 40 39
Paraguay 42 42 42 42 41
Philippines 42 42 41 41 41
Bolivia 42 42 42 41 41
Mongolia 42 42 41 41 41
Nepal 42 42 42 42 42
Morocco 43 42 42 41 41
Samoa 43 42 42 41 41
Haiti 42 42 43 43 43
Central African Republic 42 43 43 43 43
Saudi Arabia 43 43 43 43 43
Cambodia 42 43 43 43 44
Tajikistan 43 43 43 43 43
Guinea 43 43 43 44 44
Pakistan 43 43 43 43 44
Bangladesh 44 43 43 43 42
El Salvador 44 44 43 43 42
Bhutan 44 44 44 44 44
Libya 44 44 43 43 42
South Sudan 44 44 44 44 44
Somalia 44 44 44 45 45
Papua New Guinea 45 44 44 43 43
Vanuatu 44 44 44 44 44
Lao PDR 44 44 44 44 44
Congo, Rep. 44 44 44 44 44
Belize 45 44 44 44 44
Lesotho 45 45 44 44 44
Ghana 45 45 44 44 44
Cabo Verde 45 45 45 45 45
Mauritania 45 45 45 45 45
Sierra Leone 45 45 45 45 45
Djibouti 45 45 45 45 45
Mali 45 45 45 46 46
Nigeria 45 45 45 45 45
Congo, Dem. Rep. 45 45 45 45 45
Mozambique 45 45 46 46 47
Cote d'Ivoire 45 45 45 45 45
Micronesia, Fed. Sts. 46 45 45 45 44
Liberia 45 45 45 45 45
Madagascar 46 45 45 45 45
Algeria 46 45 45 45 44
Iran, Islamic Rep. 45 46 46 46 46
Maldives 45 46 46 46 47
Guatemala 46 46 46 46 45
Benin 46 46 46 46 46
Comoros 46 46 46 46 45
Oman 46 46 46 46 46
Cameroon 46 46 46 46 46
Honduras 46 46 46 46 46
Eritrea 46 46 46 46 46
Iraq 46 46 46 46 46
Botswana 46 46 46 46 45
Ethiopia 46 46 46 46 46
Burundi 46 46 47 47 47
Tanzania 46 46 46 46 46
Sudan 47 46 46 46 46
Gambia, The 46 46 46 46 46
Guinea-Bissau 47 46 46 45 45
Namibia 47 46 46 45 44
Zambia 47 46 46 46 46
Togo 47 47 46 46 46
Chad 46 47 47 47 47
Burkina Faso 47 47 47 47 47
Nicaragua 47 47 47 47 46
Angola 47 47 47 47 47
Jordan 47 47 47 47 47
Malawi 47 47 47 47 46
Sao Tome and Principe 47 47 48 48 48
Solomon Islands 48 47 47 46 46
Senegal 47 47 47 47 47
Zimbabwe 48 48 47 47 46
Uganda 48 48 48 48 48
Niger 48 48 48 48 48
Syrian Arab Republic 48 48 48 48 47
Afghanistan 48 48 48 49 49
Swaziland 49 49 49 48 48
Kenya 50 50 50 50 49
Rwanda 50 50 50 50 50
Yemen, Rep. 51 51 52 52 52
Palau
Sint Maarten (Dutch part)
Monaco
Dominica
Marshall Islands
Taiwan, China
Andorra
Cayman Islands
San Marino
Faeroe Islands
St. Martin (French part)
Turks and Caicos Islands
Bermuda
Tuvalu
Greenland
Serbia
American Samoa
Northern Mariana Islands
West Bank and Gaza
Liechtenstein
Isle of Man
St. Kitts and Nevis

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