Country name 1984 1985 1986 1987 1988
Angola 39 39 39 39 39
South Sudan 39 39 40 40 41
Sierra Leone 40 40 40 39 38
Mozambique 41 41 41 42 42
Niger 41 42 42 42 43
Eritrea 43 43 44 44 45
Equatorial Guinea 43 43 44 44 44
Timor-Leste 41 42 44 44 45
Ethiopia 43 43 44 44 45
Mali 42 43 44 45 45
Afghanistan 43 44 44 45 46
Somalia 44 45 45 45 44
Chad 45 45 45 45 45
Malawi 45 45 45 45 46
Guinea 43 44 45 46 47
Nigeria 45 45 45 45 45
Liberia 45 45 45 45 45
Central African Republic 46 46 46 45 45
Guinea-Bissau 45 45 46 46 46
Congo, Dem. Rep. 45 46 46 46 46
Zambia 47 47 46 45 44
Rwanda 48 48 46 43 40
Burundi 47 47 47 47 47
Uganda 48 48 47 47 47
Benin 46 47 48 49 49
Burkina Faso 48 48 48 48 48
Madagascar 49 49 49 49 49
Gambia, The 48 49 49 50 50
Bhutan 48 49 50 50 51
Tanzania 49 50 50 50 49
Lao PDR 49 50 50 51 52
Cote d'Ivoire 50 51 51 51 51
Iran, Islamic Rep. 47 49 51 54 56
Cambodia 48 50 51 52 52
Cameroon 51 51 52 52 52
Nepal 50 51 52 52 53
Haiti 51 51 52 52 52
Papua New Guinea 52 52 52 52 53
Comoros 52 52 52 53 53
Togo 52 53 53 54 54
Senegal 52 52 53 54 55
Sudan 53 53 53 54 54
Ghana 53 53 54 54 55
Yemen, Rep. 53 54 54 55 55
Djibouti 54 54 54 55 55
Bolivia 53 54 55 55 56
El Salvador 52 53 55 56 58
Myanmar 54 55 55 55 56
Congo, Rep. 55 55 55 55 54
Lesotho 55 55 56 56 57
Mauritania 55 56 56 56 57
Swaziland 55 56 56 57 57
Solomon Islands 57 57 56 56 56
Mongolia 56 56 57 57 57
Kiribati 56 56 57 57 57
South Africa 56 56 57 57 58
India 57 57 57 58 58
Iraq 55 56 58 59 61
Guatemala 57 57 58 58 59
Kenya 58 58 58 58 58
Namibia 57 57 58 58 58
Guyana 58 58 58 58 58
Nicaragua 57 57 58 59 60
Gabon 57 57 58 59 59
Bangladesh 57 58 58 59 59
Maldives 57 58 59 59 60
Turkey 58 58 59 59 60
Turkmenistan 59 59 59 59 59
Sao Tome and Principe 59 59 59 59 60
Pakistan 59 59 59 60 60
Zimbabwe 59 59 59 59 59
Samoa 59 59 60 60 61
Indonesia 59 59 60 60 61
Vanuatu 59 59 60 60 61
Egypt, Arab Rep. 59 60 60 61 61
Morocco 59 60 61 61 62
Tajikistan 61 61 61 61 61
Greenland 61 61 61 61 61
Botswana 61 61 61 61 61
Peru 60 61 61 62 62
Kyrgyz Republic 61 61 61 62 62
Brazil 61 61 61 62 62
Philippines 61 61 62 62 62
Azerbaijan 62 62 62 62 61
Honduras 61 61 62 63 63
Cabo Verde 61 62 62 62 63
Fiji 62 63 63 63 63
Oman 61 62 63 64 64
Moldova 63 63 63 64 64
Algeria 62 63 63 64 65
Dominican Republic 63 63 64 64 65
Uzbekistan 63 64 64 64 64
Suriname 64 64 64 64 64
Colombia 64 64 64 64 64
Kazakhstan 64 64 64 65 65
Ecuador 63 64 64 65 66
Tunisia 64 64 65 65 66
Korea, Dem. Rep. 64 64 65 65 66
Russian Federation 62 63 65 65 65
Mauritius 65 65 65 65 65
Vietnam 64 65 65 65 66
Trinidad and Tobago 65 65 65 65 65
Kosovo 65 65 65 65 65
Korea, Rep. 64 64 65 66 66
Micronesia, Fed. Sts. 65 65 65 65 65
French Polynesia 65 65 65 66 66
Paraguay 65 65 65 65 65
Hungary 65 65 65 66 66
Libya 65 65 65 66 66
Ukraine 65 65 65 66 66
Estonia 64 65 66 66 67
Grenada 65 65 66 66 66
Saudi Arabia 64 65 66 66 67
Thailand 64 65 66 66 67
New Caledonia 65 65 66 67 67
Mexico 65 66 66 67 67
Sri Lanka 66 66 66 66 66
Georgia 66 66 66 66 66
Latvia 64 65 66 66 66
Armenia 67 67 66 66 66
Romania 67 67 67 66 67
Bahamas, The 66 66 67 67 67
Poland 67 67 67 67 67
St. Vincent and the Grenadines 67 67 67 67 67
China 67 67 67 67 68
Venezuela, RB 66 67 67 67 68
Jordan 67 67 67 68 68
Belarus 66 67 67 67 67
Argentina 67 67 67 68 68
Slovak Republic 67 67 67 67 67
Czech Republic 67 68 67 68 68
Lebanon 67 67 67 68 68
Tonga 67 67 68 68 68
Barbados 67 67 68 68 68
Antigua and Barbuda 67 67 68 68 68
St. Lucia 67 67 68 68 68
Croatia 66 67 68 68 68
Syrian Arab Republic 67 67 68 68 69
Slovenia 67 67 68 68 68
Lithuania 65 66 68 68 67
Malaysia 68 68 68 68 69
Uruguay 68 68 68 68 69
Macedonia, FYR 68 68 68 69 69
Bulgaria 68 68 69 68 68
Guam 68 69 69 69 69
Albania 69 69 69 69 69
Chile 68 69 69 69 70
Jamaica 69 69 69 69 69
United Arab Emirates 68 69 69 69 70
Bosnia and Herzegovina 69 69 69 68 66
Panama 69 69 69 70 70
Belize 69 69 69 69 69
Virgin Islands (U.S.) 69 70 70 70 70
Portugal 69 69 70 70 70
St. Martin (French part) 70 69 70 71 71
Luxembourg 70 70 70 71 71
Kuwait 70 70 70 71 71
Bahrain 70 70 70 71 71
Finland 70 70 71 71 71
Puerto Rico 71 71 71 70 70
Aruba 71 71 71 71 71
Brunei Darussalam 70 71 71 71 71
Montenegro 71 71 71 71 71
Austria 70 70 71 71 72
New Zealand 71 71 71 71 71
Ireland 71 71 71 71 72
Germany 71 71 71 71 72
United States 71 71 71 71 71
Belgium 71 71 71 72 72
France 71 71 72 72 72
Denmark 72 72 72 72 72
Malta 72 72 72 72 72
Macao SAR, China 71 72 72 72 73
United Kingdom 72 72 72 73 73
Faeroe Islands 73 73 72 72 73
Singapore 71 72 72 73 73
Greece 72 72 72 72 73
Italy 72 72 73 73 73
Costa Rica 72 72 73 73 73
Australia 72 72 73 73 73
Cuba 73 73 73 73 73
Norway 73 73 73 73 73
Netherlands 73 73 73 74 74
Israel 73 74 73 74 74
Canada 73 73 73 74 74
Spain 73 73 73 73 73
Switzerland 73 73 74 74 74
Qatar 73 74 74 74 74
Cyprus 74 74 74 74 74
Sweden 74 74 74 74 74
Hong Kong SAR, China 73 74 74 74 74
Japan 75 75 75 76 76
Iceland 75 75 75 75 74
Monaco
Isle of Man
Northern Mariana Islands
San Marino
Palau
Turks and Caicos Islands
St. Kitts and Nevis 64
Tuvalu
Andorra
Cayman Islands
Curacao
Serbia
Sint Maarten (Dutch part)
Seychelles 67
Marshall Islands 70
Liechtenstein
West Bank and Gaza
Bermuda
American Samoa
Dominica 71

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