Country name 1986 1987 1988 1989 1990
Afghanistan 32 32
Albania 48 49 49 49 49
Algeria 42 42 42 43 44
American Samoa
Andorra
Angola 39 41 42 39 38
Antigua and Barbuda
Argentina 64 64 64
Armenia
Aruba
Australia 50 50 50 50 50
Austria 48 48 48 48 48
Azerbaijan 50
Bahamas, The 52 51
Bahrain 51 52 52 53 54
Bangladesh 31 31 32 32 33
Barbados 51 47
Belarus 50 50 50 50
Belgium 51 51 51
Belize 52 51
Benin 28 28 28
Bermuda
Bhutan
Bolivia 45 45 46 45
Bosnia and Herzegovina
Botswana 53 52 51 52 53
Brazil
Brunei Darussalam 51 52
Bulgaria 52 52 52 52 52
Burkina Faso 32 31 32 32 33
Burundi 30 34 35 35 36
Cabo Verde 45 47 49 50 52
Cambodia 37 37 34 31
Cameroon 37 38 39 40 41
Canada 49 49 49 49 49
Cayman Islands
Central African Republic 26 28 27 28 28
Chad 15 15 16 18
Chile 51 51 52
China 40 41 41 41 41
Colombia 50 50 50 50
Comoros 39 40 42
Congo, Dem. Rep. 30
Congo, Rep. 42 43 43 43 42
Costa Rica 52 51 51 50 51
Cote d'Ivoire 29 30 30 31 31
Croatia
Cuba 52 52 52 53 53
Curacao
Cyprus 53 53 53 52 52
Czech Republic 51 51 50 51 51
Denmark 51 51 51 51 51
Djibouti 33 35 35 34 35
Dominica 54 53 52 53
Dominican Republic 55
Ecuador 47 48 48
Egypt, Arab Rep. 39 40 40 41 42
El Salvador 52 51
Equatorial Guinea
Eritrea 48 48
Estonia 52 52 53 53 52
Ethiopia 39 39 39 40 42
Faroe Islands
Fiji 50 50
Finland 53 53 53 53 53
France 52 52 52 52 52
French Polynesia
Gabon 44 45 45 46
Gambia, The 30
Georgia 46
Germany
Ghana 41 40 40 40
Greece 50 50 51 51 51
Greenland
Grenada 53 53 51 53 52
Guam
Guatemala
Guinea 26 25 23 24 24
Guinea-Bissau 27 28 35
Guyana 52 52
Haiti 47 46 49 49 49
Honduras
Hong Kong SAR, China 51 51 51
Hungary 51 51 51 51 52
Iceland 51 51 51
India 33 34 34 35 35
Indonesia 44 45 45
Iran, Islamic Rep. 40 40 40 41 41
Iraq 36 37 38 39
Ireland 50 50 50 50 50
Isle of Man
Israel 52 52 52 52 52
Italy 49 49 49 49 50
Jamaica 52 52
Japan 50 50 50 50 50
Jordan 48 49 49 49 49
Kazakhstan
Kenya 44 44 45 45 46
Kiribati 52 51 52 52 52
Korea, Dem. People’s Rep.
Korea, Rep. 47 47 47 46 46
Kuwait 47 47 48 48 48
Kyrgyz Republic 49 48 50
Lao PDR 42 42 40
Latvia 50
Lebanon 52
Lesotho 60 61 60 60 60
Liberia
Libya 45
Liechtenstein
Lithuania
Luxembourg 55 54 54 53
Macao SAR, China 55
Macedonia, FYR
Madagascar 46 49 49
Malawi 34 34 36 36 37
Malaysia 49 50 50 50 51
Maldives
Mali 30 30 30 33 34
Malta 56 54 53 53 53
Marshall Islands
Mauritania 28 29 31 31 31
Mauritius 47 48 49 50 50
Mexico 46 47 47 47 47
Micronesia, Fed. Sts.
Moldova 51 51 51
Monaco
Mongolia 52
Montenegro
Morocco 39 40 40 40 40
Mozambique 35 35 38
Myanmar 47 47 47 48 48
Namibia 56 56
Nepal
Netherlands 53 53 53 52 52
New Caledonia
New Zealand 49 49 49 49 49
Nicaragua 63 63 63 62 58
Niger 28 29 30 29
Nigeria 41 43 43
Northern Mariana Islands
Norway 51 51 51 51 51
Oman 34 37 39 42 43
Pakistan 27 27 28 28 28
Palau
Panama 51 51 51 51 51
Papua New Guinea 37 36 37 37 38
Paraguay 49 49 50 51 51
Peru
Philippines 50 50 49 49 50
Poland 55 56
Portugal 53 49 53 50
Puerto Rico 51 51 51 51 51
Qatar 52 55 52 52 52
Romania
Russian Federation 50 50 50
Rwanda 44 45 45 46 46
Samoa 50
San Marino 48 53 52 51 52
Sao Tome and Principe 47 47 46
Saudi Arabia
Senegal 33 33 34 33 34
Serbia
Seychelles 48 48 49 49
Sierra Leone 33 33 33 34
Singapore 50 50 50 50 50
Sint Maarten (Dutch part)
Slovak Republic
Slovenia
Solomon Islands 38 37
Somalia 36
South Africa 52 52 52 54 54
South Sudan
Spain 50 51 50 50 51
Sri Lanka 52 51 51 51 51
St. Kitts and Nevis 49 51 52 52
St. Lucia 58 57 54 58
St. Martin (French part)
St. Vincent and the Grenadines 59 56 60 60
Sudan
Suriname 56 57 57 57 56
Swaziland 49 50 50 50 50
Sweden 51 51 52 52
Switzerland 50 50 50 50 50
Syrian Arab Republic 41 41 41 41 42
Tajikistan
Tanzania 38 40 41 43 42
Thailand 51
Timor-Leste
Togo 24 23 24 24 25
Tonga 49 48
Trinidad and Tobago 50 50 50 50
Tunisia 41 42 42 43 43
Turkey 37 37 38 38 38
Turkmenistan
Turks and Caicos Islands
Tuvalu 51 49
Uganda 35 33 33 34 37
Ukraine
United Arab Emirates 49 49 50 50 50
United Kingdom 49 49 49 49 49
United States 49 49 49
Uruguay
Uzbekistan 47 48 49
Vanuatu 44
Venezuela, RB 54 54 54 54
Vietnam 47
Virgin Islands (U.S.)
West Bank and Gaza
Yemen, Rep.
Zambia 37 37
Zimbabwe 40 41 42 42 47

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