Country name 1986 1987 1988 1989 1990
Sierra Leone 40 39 38 38 37
Angola 39 39 39 39 39
South Sudan 40 40 41 41 42
Mozambique 41 41 41 41 42
Niger 42 42 43 43 44
Malawi 44 43 43 43 43
Rwanda 47 44 40 35 31
Eritrea 44 44 45 45 46
Ethiopia 44 44 45 45 46
Timor-Leste 44 44 45 46 47
Uganda 45 45 44 43 43
Somalia 45 45 44 44 44
Mali 44 45 45 46 47
Zambia 46 45 44 43 42
Nigeria 45 45 45 45 45
Liberia 45 45 45 45 45
Chad 45 45 46 46 46
Equatorial Guinea 45 46 46 46 47
Guinea-Bissau 46 46 46 47 47
Guinea 45 46 47 48 49
Afghanistan 46 46 47 48 49
Congo, Dem. Rep. 47 47 47 47 48
Burundi 47 47 47 47 46
Central African Republic 47 47 47 47 47
Burkina Faso 48 48 48 48 48
Benin 48 49 49 50 51
Madagascar 49 49 49 49 50
Tanzania 49 49 49 49 49
Gambia, The 49 50 50 51 51
Cambodia 50 50 51 51 51
Bhutan 50 50 51 52 53
Lao PDR 50 51 51 52 52
Cote d'Ivoire 51 51 51 51 51
Nepal 50 51 52 53 54
Cameroon 52 52 52 52 52
Bolivia 51 52 52 53 53
Haiti 52 52 52 53 53
Papua New Guinea 52 52 53 53 53
Comoros 53 53 54 55 55
Sudan 53 54 54 54 54
Togo 53 54 54 54 55
Iran, Islamic Rep. 51 54 57 59 62
Senegal 53 54 55 55 56
Ghana 54 54 55 55 56
Djibouti 54 55 55 55 55
Congo, Rep. 55 55 54 54 54
Yemen, Rep. 54 55 55 56 56
Myanmar 55 55 56 56 57
El Salvador 55 56 57 58 59
Solomon Islands 56 56 56 56 56
Lesotho 56 56 57 57 58
Mauritania 56 56 57 57 57
Bangladesh 56 56 57 57 58
India 56 56 57 57 58
Kiribati 56 56 57 57 58
Swaziland 56 57 57 58 58
Mongolia 57 57 57 58 58
South Africa 57 57 58 58 58
Kenya 58 58 58 57 57
Guatemala 58 58 59 59 59
Namibia 58 58 58 59 59
Pakistan 58 59 59 59 59
Nicaragua 58 59 60 60 61
Gabon 58 59 59 60 60
Turkmenistan 59 59 59 59 59
Turkey 59 59 60 60 61
Sao Tome and Principe 59 59 60 60 60
Iraq 58 59 61 63 65
Guyana 60 60 60 60 60
Maldives 59 60 61 61 62
Zimbabwe 60 60 60 59 58
Samoa 60 60 61 61 62
Vanuatu 60 60 61 61 62
Brazil 60 61 61 61 62
Tajikistan 61 61 61 60 60
Egypt, Arab Rep. 60 61 61 62 62
Botswana 61 61 61 61 61
Indonesia 61 61 61 62 62
Greenland 61 61 61 61 61
Morocco 61 61 62 63 63
Peru 61 62 62 63 63
Azerbaijan 62 62 61 61 61
Kyrgyz Republic 61 62 62 64 64
Philippines 62 62 62 62 63
Cabo Verde 62 63 63 64 64
Honduras 62 63 63 64 64
Fiji 63 63 63 63 64
Oman 63 64 64 65 65
Moldova 63 64 64 64 64
Uzbekistan 64 64 64 64 64
Suriname 64 64 64 64 64
St. Kitts and Nevis 64
Algeria 63 64 65 65 65
Dominican Republic 64 64 65 65 65
Colombia 64 64 64 64 64
Russian Federation 65 65 65 64 64
Kazakhstan 64 65 65 64 64
Mauritius 65 65 65 65 66
Trinidad and Tobago 65 65 65 65 65
Ecuador 65 65 66 66 67
Korea, Dem. Rep. 65 65 66 66 66
Vietnam 65 65 66 66 66
Tunisia 65 65 66 66 69
Micronesia, Fed. Sts. 65 65 65 66 66
Paraguay 65 65 65 66 66
French Polynesia 65 66 66 66 67
Hungary 65 66 66 65 65
Grenada 66 66 66 66 66
Korea, Rep. 65 66 66 67 67
Libya 65 66 66 67 67
Armenia 66 66 66 65 65
Sri Lanka 66 66 66 66 66
Saudi Arabia 66 66 67 67 67
Georgia 66 66 66 66 66
Ukraine 65 66 66 66 66
Romania 67 66 67 67 67
Thailand 66 66 67 67 67
Estonia 66 66 67 66 65
Latvia 66 66 66 65 64
New Caledonia 66 67 66 67 68
Mexico 66 67 67 67 68
Belarus 67 67 67 67 66
Venezuela, RB 67 67 67 67 67
Bahamas, The 67 67 67 67 67
Poland 67 67 67 67 67
Seychelles 67
Slovak Republic 67 67 67 67 67
St. Vincent and the Grenadines 67 67 67 68 68
China 67 67 68 68 68
Argentina 67 68 68 68 68
Jordan 67 68 68 68 69
Tonga 68 68 68 68 68
Lithuania 68 68 67 67 66
Lebanon 67 68 68 68 69
Czech Republic 67 68 68 68 68
Croatia 68 68 68 68 69
Antigua and Barbuda 68 68 68 68 69
St. Lucia 68 68 68 68 69
Chile 68 68 69 69 69
Slovenia 68 68 68 69 69
Syrian Arab Republic 68 68 69 69 69
Barbados 68 68 68 69 69
Malaysia 68 68 69 69 69
Bulgaria 69 68 68 68 68
Uruguay 68 68 69 69 69
Macedonia, FYR 68 69 69 69 69
Bosnia and Herzegovina 69 69 68 68 67
Jamaica 69 69 69 69 68
Guam 69 69 69 70 70
Albania 69 69 69 69 69
Belize 69 69 69 69 69
United Arab Emirates 69 69 70 70 71
Panama 69 70 70 70 70
Marshall Islands 70
Virgin Islands (U.S.) 70 70 70 71 71
Portugal 70 70 70 71 71
Puerto Rico 71 70 70 70 70
St. Martin (French part) 70 71 71 71 71
Dominica 71
Luxembourg 70 71 71 71 71
Kuwait 70 71 71 71 71
Finland 71 71 71 71 71
Bahrain 70 71 71 71 71
Brunei Darussalam 71 71 71 71 72
Aruba 71 71 71 71 71
Montenegro 71 71 71 71 71
Ireland 71 71 72 72 72
New Zealand 71 71 71 72 73
United States 71 71 71 72 72
Germany 71 71 72 72 72
Austria 71 72 72 72 72
Denmark 72 72 72 72 72
France 72 72 72 72 73
Belgium 71 72 72 72 73
Faeroe Islands 72 72 72 73 73
Malta 72 72 72 73 73
Macao SAR, China 72 72 73 73 73
Costa Rica 72 72 73 73 73
Greece 72 72 73 74 75
United Kingdom 72 73 73 73 73
Singapore 72 73 73 73 73
Norway 73 73 73 73 73
Cuba 73 73 73 73 73
Italy 73 73 73 74 74
Australia 73 73 73 74 74
Spain 73 73 73 73 73
Netherlands 73 74 74 74 74
Canada 73 74 74 74 74
Qatar 73 74 74 74 74
Israel 73 74 74 75 75
Switzerland 74 74 74 74 74
Cyprus 74 74 74 74 75
Sweden 74 74 74 75 75
Hong Kong SAR, China 74 74 74 74 75
Iceland 75 75 74 76 75
Japan 75 76 76 76 76
Andorra
Turks and Caicos Islands
Serbia
Tuvalu
San Marino
Palau 63
Cayman Islands
Sint Maarten (Dutch part)
Curacao
Northern Mariana Islands
Monaco
Liechtenstein
West Bank and Gaza 67
Bermuda
American Samoa
Isle of Man

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