Country name 1989 1990 1991 1992 1993
Afghanistan 49 49 49 48 48
Albania 34 34 34 33 33
Algeria 44 44 43 43 42
American Samoa
Andorra
Angola 47 47 48 48 48
Antigua and Barbuda 30 30 30 30 30
Argentina 31 31 30 30 30
Armenia 30 30 30 30 30
Aruba 25 25 24 24 24
Australia 22 22 22 22 22
Austria 17 17 17 18 18
Azerbaijan 34 34 34 34 34
Bahamas, The 33 32 32 32 32
Bahrain 33 33 32 32 31
Bangladesh 42 42 42 41 41
Barbados 24 24 24 23 23
Belarus 23 23 23 23 23
Belgium 18 18 18 18 18
Belize 44 43 43 43 43
Benin 46 46 46 46 46
Bermuda
Bhutan 44 44 44 44 44
Bolivia 41 41 41 41 41
Bosnia and Herzegovina 25 24 24 23 23
Botswana 45 45 44 44 43
Brazil 36 35 35 34 34
Brunei Darussalam 35 34 34 34 34
Bulgaria 21 20 20 19 19
Burkina Faso 47 47 47 47 47
Burundi 47 48 48 49 49
Cabo Verde 45 46 46 45 45
Cambodia 44 44 45 46 46
Cameroon 46 46 46 46 46
Canada 21 21 21 21 21
Cayman Islands
Central African Republic 43 43 43 43 43
Chad 47 47 48 48 48
Chile 30 30 30 30 30
China 29 29 29 29 29
Colombia 37 37 36 36 36
Comoros 45 45 45 45 44
Congo, Dem. Rep. 45 46 46 46 46
Congo, Rep. 44 44 43 43 43
Costa Rica 36 36 36 35 35
Cote d'Ivoire 45 45 44 44 44
Croatia 20 20 20 19 19
Cuba 24 23 23 23 23
Curacao 27 27 27 27 27
Cyprus 25 25 25 25 25
Czech Republic 22 22 21 20 20
Denmark 17 17 17 17 17
Djibouti 45 45 45 45 44
Dominica
Dominican Republic 39 39 38 38 38
Ecuador 39 38 38 37 37
Egypt, Arab Rep. 40 40 39 39 39
El Salvador 42 42 41 41 40
Equatorial Guinea 37 38 39 40 40
Eritrea 46 47 47 48 49
Estonia 22 22 22 22 21
Ethiopia 46 46 46 46 46
Faeroe Islands
Fiji 39 38 38 38 37
Finland 19 19 19 19 19
France 20 20 20 20 20
French Polynesia 36 36 35 35 35
Gabon 41 41 42 42 42
Gambia, The 46 46 46 46 46
Georgia 25 25 25 24 24
Germany 16 16 16 16 16
Ghana 44 44 44 43 43
Greece 20 19 19 18 18
Greenland
Grenada 39 39 39 39 39
Guam 30 30 30 30 30
Guatemala 45 45 45 45 45
Guinea 44 44 44 44 44
Guinea-Bissau 45 44 44 44 44
Guyana 35 34 34 34 34
Haiti 43 43 43 43 43
Honduras 46 45 45 45 45
Hong Kong SAR, China 22 21 21 21 20
Hungary 21 20 20 19 19
Iceland 25 25 25 25 25
India 38 38 37 37 37
Indonesia 37 36 36 35 35
Iran, Islamic Rep. 46 45 45 44 44
Iraq 46 46 46 45 45
Ireland 28 27 26 26 25
Isle of Man
Israel 32 31 31 30 30
Italy 17 16 16 16 15
Jamaica 35 35 35 35 34
Japan 19 18 18 17 17
Jordan 47 46 45 44 43
Kazakhstan 32 32 31 31 31
Kenya 49 49 49 48 47
Kiribati 40 40 41 41 41
Korea, Dem. Rep. 27 27 27 27 27
Korea, Rep. 26 26 25 24 24
Kosovo
Kuwait 36 35 34 33 31
Kyrgyz Republic 37 38 38 38 38
Lao PDR 44 44 44 44 44
Latvia 21 21 21 21 21
Lebanon 35 34 34 33 33
Lesotho 44 44 44 43 43
Liberia 45 45 45 45 45
Libya 42 42 41 40 40
Liechtenstein
Lithuania 23 23 22 22 22
Luxembourg 17 17 18 18 18
Macao SAR, China 25 25 26 26 26
Macedonia, FYR 26 26 26 26 25
Madagascar 45 45 45 45 45
Malawi 46 46 45 45 45
Malaysia 37 37 37 37 36
Maldives 47 47 47 47 47
Mali 46 46 46 46 46
Malta 25 25 25 24 24
Marshall Islands
Mauritania 45 45 44 44 44
Mauritius 29 29 29 28 28
Mexico 39 38 38 37 37
Micronesia, Fed. Sts. 44 44 44 44 44
Moldova 28 28 28 28 27
Monaco
Mongolia 41 40 40 40 40
Montenegro 26 26 26 25 25
Morocco 41 40 40 40 39
Mozambique 47 47 46 46 45
Myanmar 38 38 37 36 36
Namibia 44 44 43 43 43
Nepal 42 42 42 42 42
Netherlands 18 18 18 18 18
New Caledonia 32 32 31 31 31
New Zealand 23 23 23 23 23
Nicaragua 46 46 46 45 45
Niger 48 48 48 48 48
Nigeria 45 45 45 45 44
Northern Mariana Islands
Norway 19 19 19 19 19
Oman 46 45 44 43 42
Pakistan 44 44 44 44 44
Palau
Panama 36 36 35 35 34
Papua New Guinea 43 42 42 41 41
Paraguay 41 41 41 41 41
Peru 39 38 38 37 37
Philippines 41 41 41 41 40
Poland 25 25 25 24 24
Portugal 21 21 20 19 19
Puerto Rico 28 27 27 26 26
Qatar 28 28 28 28 27
Romania 24 24 23 23 22
Russian Federation 23 23 23 23 22
Rwanda 50 50 49 48 46
Samoa 41 40 40 40 40
San Marino
Sao Tome and Principe 48 48 48 48 48
Saudi Arabia 43 42 42 42 42
Senegal 47 47 47 47 46
Serbia 24 24 24 23
Seychelles 35 35 34 33 32
Sierra Leone 45 45 45 44 44
Singapore 22 21 21 22 22
Sint Maarten (Dutch part)
Slovak Republic 26 25 25 24 24
Slovenia 21 21 20 20 19
Solomon Islands 46 45 45 45 44
Somalia 45 45 45 45 45
South Africa 39 39 38 38 37
South Sudan 44 44 44 44 44
Spain 21 20 19 18 18
Sri Lanka 33 32 32 31 31
St. Kitts and Nevis
St. Lucia 37 37 36 36 36
St. Martin (French part)
St. Vincent and the Grenadines 38 38 37 37 36
Sudan 46 45 45 45 45
Suriname 34 33 33 33 33
Swaziland 48 48 48 48 48
Sweden 18 18 18 18 19
Switzerland 17 17 17 17 17
Syrian Arab Republic 47 47 46 46 45
Tajikistan 43 44 44 44 44
Tanzania 46 46 46 46 46
Thailand 31 30 30 29 28
Timor-Leste 40 40 40 40 41
Togo 46 46 46 46 46
Tonga 40 39 39 39 40
Trinidad and Tobago 34 34 33 33 32
Tunisia 39 38 37 37 36
Turkey 37 36 36 35 35
Turkmenistan 41 40 40 40 40
Turks and Caicos Islands
Tuvalu
Uganda 48 48 48 48 48
Ukraine 22 22 21 21 21
United Arab Emirates 32 31 30 29 28
United Kingdom 19 19 19 19 19
United States 22 22 22 22 22
Uruguay 26 26 26 26 25
Uzbekistan 41 41 41 41 41
Vanuatu 44 44 44 43 43
Venezuela, RB 38 38 38 37 37
Vietnam 38 37 37 37 37
Virgin Islands (U.S.) 30 29 28 28 28
West Bank and Gaza 48 48 48 48
Yemen, Rep. 52 52 52 52 51
Zambia 46 46 46 46 46
Zimbabwe 46 46 46 45 45

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