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

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