Country name 1980 1981 1982 1983
Oman 0 0 0 0
Mozambique 0 0 0
Cambodia 0 0 0 0
Burkina Faso 0 0 0 1
Niger 0 0 0 0
Rwanda 0 0
Lao PDR 0 0 1 1
Burundi 0 0 1
Malawi 0 0 0 0
Ethiopia 1 0 0 1
Uganda 1 1 1
St. Kitts and Nevis 1
Haiti 1 1 1
Bhutan 1 1
Mali 1 1 1
Kenya 1 1 1
Lesotho 1 1 1 1
Mauritius 1 1 1 1
Benin 1 1 2 2
Central African Republic 1 1 1 1
Botswana 1 1 1 1
Congo, Dem. Rep. 1 1 1 1
China 1 2
Zimbabwe 1 2 2 1
Luxembourg 1 3 2 3
Togo 2 2 2 2
United Arab Emirates 2 3 3 4
Papua New Guinea 2 2
Cameroon 2 2 2 2
Nigeria 2 2 3 3
St. Lucia 2 2 3 3
Pakistan 2
Cyprus 2 3 3 3
Cote d'Ivoire 2 3 3
Fiji 2 2 3
Vietnam 2 2
St. Vincent and the Grenadines 3
Malta 3 3 3 3
Senegal 3 3 3 3
Guyana 3 3 3 2
Madagascar 3 3 4 4
Bangladesh 3 3 4 5
Bahrain 3 5 6
Gabon 3 5
Indonesia 3 4 4 4
Swaziland 3 3
Malaysia 4 4 4
Trinidad and Tobago 4 4 4 4
Congo, Rep. 5 5 6 6
India 5 5 5 6
Tunisia 5 5 5 5
Grenada 6 8 4
Libya 6 7 8 9
Saudi Arabia 6 7 8 8
Turkey 7 6 6 6
Honduras 7 8 9 9
Paraguay 9 9 9 10
Iraq 9 9 10 10
Colombia 9 10 11 11
Qatar 9 10 12 15
Hong Kong SAR, China 9 10 11
Bermuda 10 11
Romania 10 11 12 14
Thailand 10 8 19 21
Kuwait 10 11 12 13
Nicaragua 11 10 10
Brazil 11 11 11 11
Portugal 11 12 12 12
Chile 12 12 14
Mexico 13 13 14 15
Korea, Rep. 13 15 20 24
Hungary 13 13 14 15
Syrian Arab Republic 14 16 16 16
Jordan 15 17 20 21
Uruguay 16 17 22 24
Egypt, Arab Rep. 16 17 18 18
Czech Republic 16 17 18 17
Greece 17 17 18 19
Ireland 17 18 19 21
Cuba 17 16 16 16
Bulgaria 17 16 16 15
Peru 17 20 20 21
Switzerland 18 18 19 19
Poland 18 18 17 16
United Kingdom 19 19 19 21
Bahamas, The 19 16 15 12
Micronesia, Fed. Sts. 20 31 22
Iceland 20 20 21 23
Costa Rica 20 21 20 20
Panama 20 21 21 20
Venezuela, RB 20 20 20 21
Austria 21 22 22 22
Argentina 22 23 24 25
Spain 23 23 23 24
Philippines 24 25 26 27
Belgium 25 24 26 27
Australia 25 26 26 26
France 25 25 27 27
Norway 25 25 26 28
Mongolia 26 26 25 25
New Zealand 27 27 28 28
Italy 27 27 25
Denmark 28 28 28 29
Netherlands 29 30 30 30
Japan 31 31 30 30
Israel 31 31 34 34
Finland 32 32 33 33
Lebanon 32 30 26 27
Ecuador 34 35 33 31
Sweden 36 31 31 32
Belarus 38 39 40 41
Russian Federation 45 46 47 48
United States 53 56 57 57
Solomon Islands
Macao SAR, China
Tajikistan 24
Macedonia, FYR 26 26 25
Comoros
Kyrgyz Republic
St. Martin (French part)
Kosovo
Aruba
Korea, Dem. Rep.
Maldives
Singapore
Kiribati
Chad
Kazakhstan 35
Brunei Darussalam 1
Marshall Islands
Afghanistan 2
Latvia 24 24 24
Armenia
Mauritania
Jamaica 7
Liberia
Isle of Man
Seychelles
Iran, Islamic Rep.
Slovak Republic
Moldova 29
South Africa
Monaco
Cayman Islands
Guinea-Bissau
Sudan
Montenegro
Bosnia and Herzegovina
Morocco 6 6 5
Belize
Guinea 4 3 3
Barbados 15 18
Myanmar 5 5
Turks and Caicos Islands
Namibia
Antigua and Barbuda
Nepal 4 4 3
Andorra
Guatemala 6 7
Zambia 1 1 2
New Caledonia
Croatia 19
Guam
Serbia
Greenland
Sierra Leone 1
Ghana 2
Sint Maarten (Dutch part)
Germany
Slovenia 19 18 18
Northern Mariana Islands
Somalia
Georgia 30
South Sudan
Gambia, The
Sri Lanka 3 4 4
French Polynesia
Canada
Palau
Cabo Verde
Faeroe Islands
Suriname 6 7 7
Estonia 23
Liechtenstein
Eritrea
Bolivia
Equatorial Guinea 4
Tanzania 0 0
El Salvador 11 13
Timor-Leste
Lithuania 24
Tonga 7
Dominican Republic
Azerbaijan 24
Puerto Rico
Turkmenistan 22
Dominica 1
Tuvalu
Djibouti 0
Ukraine 43 43 44
Vanuatu
Angola
Algeria
West Bank and Gaza
Uzbekistan
Curacao
American Samoa
Samoa 4 3
Virgin Islands (U.S.)
San Marino
Yemen, Rep.
Sao Tome and Principe
Albania 5 6

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