Country name 1980 1981 1982 1983 1984
Chad 3 3 5
Ghana 6 5 3 4 7
Central African Republic 7 9 7 12 12
Congo, Dem. Rep. 10 11 8 9 10
Madagascar 15 11 8 8 9
Puerto Rico 17 14 9 10 14
Uganda 6 6 9 7 8
Chile 21 23 11 10 14
Mozambique 8 10 11 12 12
El Salvador 13 14 13 12 12
Sierra Leone 16 19 13 14 13
Honduras 25 21 14 14 17
Guatemala 16 17 14 11 12
Burundi 14 17 14 23 18
Bolivia 17 16 16 13 20
Mali 15 16 16 12 12
Zambia 23 19 17 14 15
Turkey 18 18 17 16 16
Nepal 18 18 17 20 19
Rwanda 16 13 18 14 16
Bangladesh 14 18 18 17 16
Burkina Faso 15 14 18 17 14
Mauritius 21 25 18 17 22
New Caledonia 17 18 17 15
Namibia 24 23 18 17 13
Nicaragua 17 24 19 22 22
Luxembourg 19 19 19 18 19
Sudan 15 19 19 15 9
Denmark 21 18 19 19 21
United Kingdom 20 18 19 20 21
Zimbabwe 17 21 19 14 17
Pakistan 18 19 19 19 18
Ethiopia 19 19 17 23
Netherlands 24 21 20 21 21
Uruguay 17 21 20 14 12
Iran, Islamic Rep. 31 27 20 27 24
Senegal 17 25 20 20 19
Dominican Republic 25 24 20 21 21
Canada 24 25 20 20 21
Colombia 19 21 21 20 19
Niger 28 20 21 13 3
Solomon Islands 25 23 21 25 16
Belize 24 26 21 20 24
Jamaica 16 20 21 22 23
Brazil 23 23 21 17 16
Togo 28 24 21 21 15
Malawi 25 18 21 23 13
Bahamas, The 18 19 21 20 16
United States 23 25 22 22 27
Belgium 27 23 22 19 20
Argentina 25 23 22 21 20
Ecuador 25 26 22 21 19
Kenya 25 23 22 21 20
India 18 22 22 20 22
Myanmar 21 23 22 18 15
Spain 24 23 22 22 20
Gambia, The 27 25 22 19 18
Barbados 25 28 23 20 16
Mexico 27 27 23 21 20
Germany 27 24 23 24 24
Cote d'Ivoire 27 26 23 18 12
Sweden 27 24 23 23 24
Italy 26 24 23 22 23
Israel 22 21 23 23 22
France 26 23 24 22 21
Costa Rica 27 29 25 16 15
Austria 29 27 25 23 24
Cameroon 21 27 25 26 26
Macao SAR, China 25 27 25
Guyana 33 31 25 21 27
South Africa 30 33 25 25 25
Kuwait 14 17 25 25 21
Syrian Arab Republic 30 25 25 25 25
New Zealand 20 24 25 26 28
Fiji 32 34 26 21 19
Cuba 26 26 26 25 26
Saudi Arabia 23 21 26 34 33
Georgia 29 25 26 31 33
Thailand 29 30 27 30 29
Oman 22 23 27 26 30
Korea, Rep. 30 28 27 27 28
Panama 28 28 27 18 15
Ireland 27 28 27 23 22
Norway 27 26 27 25 26
Benin 15 16 28 17 13
Venezuela, RB 26 24 28 12 18
Suriname 26 31 28 16 12
Indonesia 24 27 28 31 27
Philippines 29 27 28 30 20
St. Vincent and the Grenadines 38 31 28 25 28
Trinidad and Tobago 31 28 28 26 24
Guinea-Bissau 28 26 28 23 38
Switzerland 33 31 28 28 30
Finland 31 28 29 28 27
Malta 23 25 29 27 27
Somalia 42 28 29 22 24
Japan 32 31 30 28 28
Nigeria 34 30 22 12
Australia 27 29 30 25 27
Egypt, Arab Rep. 28 30 30 29 27
Swaziland 41 31 30 33 29
Greece 31 25 30 29 30
Iceland 29 29 30 23 25
Latvia 26 30 31 31 33
Sri Lanka 34 28 31 29 26
Dominica 51 34 31 28 37
Hong Kong SAR, China 35 35 31 27 24
Morocco 29 30 31 25 28
Tonga 30 30 31 29 24
Comoros 33 27 31 30 45
Cyprus 38 34 32 30 34
Tunisia 29 32 32 33 36
Peru 27 31 32 24 21
Papua New Guinea 25 27 32 29 27
Seychelles 38 32 32 21 22
St. Lucia 34 34 33 22 20
China 35 33 34 34 35
Malaysia 27 32 34 34 30
Romania 36 34
St. Kitts and Nevis 38 30 34 37 30
Bulgaria 34 35 34 33 33
Mauritania 26 30 34 26 24
Gabon 28 36 35 35 33
Bhutan 30 32 35 39 37
Portugal 34 36 35 29 23
Bahrain 46 42 36 44 43
Algeria 39 37 37 38 35
Botswana 40 43 38 29 29
Albania 35 35 38 36 32
Antigua and Barbuda 35 42 39 20 24
Jordan 37 46 39 33 30
Grenada 27 41 42 37 27
Lesotho 37 38 43 33 37
Singapore 45 45 46 46 47
Congo, Rep. 36 48 60 38 30
Kiribati 33 50 63 59 49
Mongolia 70 70 58 58
Equatorial Guinea 72 60 153 112 88
Greenland
Faeroe Islands
Turkmenistan
Estonia
Tanzania
Northern Mariana Islands
French Polynesia
Eritrea
Hungary
American Samoa
Afghanistan
Guinea
Ukraine
Cambodia
Guam
Moldova
Cabo Verde
Palau
Djibouti
Micronesia, Fed. Sts. 38
Macedonia, FYR
Belarus
Paraguay
Timor-Leste
Korea, Dem. Rep.
Kyrgyz Republic
Czech Republic
Tuvalu
Poland
Angola
Haiti
Vanuatu 24 20
Kosovo
Cayman Islands
Qatar
South Sudan
Monaco
Liberia
Vietnam
West Bank and Gaza
St. Martin (French part)
Kazakhstan
Brunei Darussalam
Samoa
Bosnia and Herzegovina
San Marino
Bermuda
Sao Tome and Principe
Tajikistan
Croatia
Iraq
Maldives
Azerbaijan
Serbia
Aruba
Lithuania
Armenia
Liechtenstein
Turks and Caicos Islands
Montenegro
Marshall Islands
Sint Maarten (Dutch part)
United Arab Emirates
Slovak Republic
Andorra
Slovenia
Uzbekistan
Libya
Isle of Man
Russian Federation
Virgin Islands (U.S.)
Lao PDR 6
Yemen, Rep.
Curacao
Lebanon

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