Country name 1990 1991 1992 1993 1994
China 3 3 3 3 3
India 6 6 6 6 6
Germany 6 6 6 6 6
Poland 7 7 7 7 7
Ukraine 7 7 7 7 7
Russian Federation 8 8 8 8 8
United States 9 8 8 8 8
Netherlands 9 9 9 9 9
Italy 9 9 9 9 9
Kazakhstan 12 12 12 12 12
Algeria 13 13 13 12 12
Brazil 13 13 13 13 13
South Sudan 14 14 13 14 14
Indonesia 15 14 14 13 12
Slovak Republic 15 15 15 15 14
Sweden 15 15 15 15 15
Spain 15 15 15 15 16
Czech Republic 16 16 16 16 16
Venezuela, RB 17 16 16 15 15
Romania 17 17 17 17 17
Nigeria 17 17 17 17 17
Belgium 18 18 18 18 17
United Kingdom 18 18 18 18 18
Canada 18 18 18 18 18
Sri Lanka 19 19 19 19 19
Iran, Islamic Rep. 20 20 19 19 19
West Bank and Gaza 20 20 20 19 19
Cameroon 20 20 20 20 20
Saudi Arabia 19 19 20 20 21
Switzerland 20 20 20 20 20
South Africa 20 20 20 21 21
Turkey 20 21 21 21 21
Bulgaria 21 21 21 21 21
Colombia 21 21 21 21 21
Pakistan 21 21 21 21 21
France 22 22 21 21 21
Korea, Dem. Rep. 21 22 22 22 22
Ghana 22 22 22 22 21
Morocco 22 22 22 22 22
Mozambique 23 23 22 22 21
Finland 22 22 22 23 23
Norway 22 22 22 23 23
Lithuania 23 23 23 23 23
Vietnam 23 23 23 23 23
Denmark 24 24 24 24 24
Belarus 24 24 24 24 24
Nepal 25 25 24 24 23
Malaysia 23 24 24 25 25
Australia 25 25 25 25 25
Turkmenistan 25 25 25 25 25
Mexico 25 25 25 25 25
Uzbekistan 25 25 25 25 24
Bosnia and Herzegovina 23 24 25 27 28
Zambia 25 25 26 26 27
Cuba 27 27 27 27 27
Libya 27 27 27 27 27
Syrian Arab Republic 28 27 27 27 26
Philippines 26 27 27 27 28
Bolivia 28 28 27 28 28
Yemen, Rep. 26 27 28 28 29
Bahrain 29 28 28 27 27
Ecuador 28 28 28 28 28
Myanmar 28 28 28 28 28
Benin 29 29 28 27 27
Honduras 29 28 28 28 28
Ethiopia 30 29 29 28 28
Hungary 29 29 29 29 28
Croatia 27 29 29 28 28
Serbia 30 29 29 29 28
Austria 30 30 30 30 30
New Zealand 31 30 30 31 31
Tanzania 31 30 30 30 30
Tunisia 31 31 31 31 31
Korea, Rep. 33 33 32 31 30
Bangladesh 31 32 32 32 32
Jordan 37 33 32 31 30
Oman 30 31 32 34 34
Papua New Guinea 31 32 32 33 33
Iraq 34 33 33 33 33
Malawi 34 33 33 34 34
United Arab Emirates 33 33 34 34 35
Japan 34 34 34 34 34
Nicaragua 34 34 34 34 35
Tajikistan 35 35 35 34 34
Congo, Dem. Rep. 34 35 35 35 35
Madagascar 35 35 35 34 34
Thailand 35 35 35 35 34
Kenya 35 35 35 35 35
Zimbabwe 35 35 35 35 34
Namibia 36 35 35 36 36
Argentina 37 37 37 37 37
Moldova 38 38 37 37 37
El Salvador 37 37 37 36 35
Niger 37 37 37 38 38
Dominican Republic 38 38 37 37 37
Uganda 39 38 38 38 38
Macedonia, FYR 38 38 38 38 38
Chad 39 38 38 38 38
Guatemala 40 39 39 38 38
Peru 39 39 39 39 39
Kyrgyz Republic 38 39 39 40 42
Mali 40 40 40 40 40
Sudan 41 41 41 40 40
Sierra Leone 40 40 41 43 44
Greece 42 42 41 41 41
Lao PDR 43 42 42 41 40
Chile 42 42 42 42 42
Cambodia 44 43 42 41 43
Estonia 43 42 42 43 43
Egypt, Arab Rep. 40 41 42 43 45
Togo 44 43 43 42 42
Central African Republic 44 43 43 43 43
Cote d'Ivoire 44 44 44 43 43
Burkina Faso 44 44 44 44 44
Azerbaijan 45 45 45 44 44
Georgia 46 46 45 44 45
Ireland 46 45 45 45 45
Jamaica 48 47 47 46 46
Costa Rica 48 48 47 47 46
Mongolia 46 47 47 48 50
Israel 49 47 47 48 48
Mauritania 50 49 48 47 46
Senegal 48 48 48 48 49
Latvia 49 49 49 49 49
Guinea 53 51 49 48 46
Armenia 49 50 50 51 53
Lebanon 58 52 51 51 50
Paraguay 53 52 52 52 52
Portugal 53 53 52 52 51
Qatar 53 53 53 53 54
Angola 53 53 53 54 54
Congo, Rep. 54 54 54 54 54
Haiti 56 55 55 55 56
Uruguay 56 56 55 55 55
Gabon 56 56 56 56 55
Somalia 55 58 58 58 58
Rwanda 56 60 61 61 61
Guinea-Bissau 64 63 62 62 61
Panama 63 63 63 63 63
Burundi 67 65 64 63 63
Afghanistan 72 69 65 61 58
Gambia, The 65 65 65 65 64
Eritrea 69 68 68 68 67
Puerto Rico 71 71 71 71 70
Djibouti 71 73 73 73 73
Liberia 89 100 85 72 59
Singapore 99 99 99 99 99
Macao SAR, China 100 100 100 100 100
Hong Kong SAR, China 100 100 100 100 100
Iceland
St. Lucia
Cyprus
Fiji
Cabo Verde
Suriname
Maldives
Timor-Leste
Malta
Isle of Man
Palau
Northern Mariana Islands
Marshall Islands
St. Vincent and the Grenadines
Guyana
Dominica
Kiribati
Mauritius
Kosovo
Tonga
Samoa
Brunei Darussalam
San Marino
New Caledonia
Sao Tome and Principe
Faeroe Islands
Guam
St. Kitts and Nevis
Grenada
St. Martin (French part)
Greenland
Equatorial Guinea
Seychelles
Swaziland
Kuwait 69 71
Lesotho
Tuvalu
Curacao
Bhutan
Comoros
Belize
Cayman Islands
Montenegro
Trinidad and Tobago
Vanuatu
Liechtenstein
Antigua and Barbuda
Turks and Caicos Islands
Sint Maarten (Dutch part)
Botswana
American Samoa
Bermuda
Monaco
Barbados
Solomon Islands
Bahamas, The
Micronesia, Fed. Sts.
Aruba
Luxembourg
Virgin Islands (U.S.)
French Polynesia
Andorra
Slovenia
Albania

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