Age of data

The table below gives the average age of the latest internationally available data for three key indicators: the under-5 mortality rate, the net enrolment rate (proportion of children of primary school age who are enrolled in primary school) and the percentage of under-5s who are underweight. 

The more up-to-date statistics used by most governments and international organizations are often interpolated and/or extrapolated from past surveys.The table shows the number of years that have elapsed, on average, between the last national on-the-ground surveys and the year 1996. 

In some cases, governments may have more recent statistics that have not yet been made available to the United Nations. 

A small number of countries have no known data at all for certain indicators. Published data for such countries usually represent estimates based on neighbouring countries at similar levels of GNP per capita.

 
Average age of data (in years) on the three social indicators
SUB-SAHARAN AFRICA
Senegal 1.0 Kenya 3.0 Guinea 6.7
Malawi 1.3 Niger 3.3 Botswana 7.3
Uganda 1.3 Mali 4.0 Sierra Leone 7.7
Congo, Dem. Rep. 1.7 Zambia 4.0 Chad 8.0
Madagascar 1.7 Eritrea 4.3 Lberia 9.7
Mauritius 1.7 South Africa 4.3 Gabon 10.0
Mozambique 1.7 Togo 4.3 Somalia 10.0
Central African Rep. 2.0 Burundi 4.7 Gambia 11.3
Côte d'Ivoire 2.7 Cameroon 4.7 Benin 12.3
Mauritania 2.7 Lesotho 4.7 Congo 13.0
Tanzania 2.7 Rwanda 4.7 Guinea-Bissau 13.0
Zimbabwe 2.7 Ethiopia 5.0 Angola 14.7
Burkina Faso 3.0 Namibia 5.0
Ghana 3.0 Nigeria 5.0
MIDDLE EAST and NORTH AFRICA
Algeria 1.7 Oman 3.7 Libya 6.7
Yemen 2.0 Tunisia 4.0 Sudan 8.7
Egypt 2.3 Syria 4.3 U. Arab Emirates 8.7
Morocco 3.0 Iraq 4.7 Saudi Arabia 9.7
Turkey 3.0 Kuwait 5.3 Israel 11.0
Iran 3.3 Jordan 6.3 Lebanon 12.7
CENTRAL ASIA
Kyrgyzstan 1.5* Armenia - Kazakstan -
Uzbekistan 2.0* Azerbaijan - Tajikistan -
Afghanistan 9.0* Georgia - Turkmenistan -
EAST/SOUTH ASIA and PACIFIC
Nepal 1.0 Myanmar 3.3 Bhutan 8.3
New Zealand 1.5* Pakistan 3.3 Korea, Rep. 8.7
Japan 2.0* India 3.7 Malaysia 9.7
Indonesia 2.3 Philippines 3.7 Thailand 10.3
Viet Nam 2.3 Mongolia 4.3 Cambodia 10.7
Australia 2.5* Lao Rep. 5.3 Papua New Guinea 11.3
China 2.7 Sri Lanka 7.0 Korea, Dem. 13.0
Bangladesh 3.0 Singapore 7.7
AMERICAS
Brazil 1.3 Haiti 3.7 Venezuela 5.0
Colombia 1.7 Nicaragua 3.7 Jamaica 5.3
Chile 2.0 El Salvador 4.0 Paraguay 5.3
Guatemala 2.3 Honduras 4.0 Panama 6.0
Canada 2.5* Peru 4.3 Cuba 6.7
United States 2.5* Dominican Rep. 4.7 Ecuador 7.0
Bolivia 2.7 Uruguay 4.7 Trinidad/Tobago 8.0
Costa Rica 3.0 Mexico 5.0 Argentina 8.7
EUROPE
Hungary 1.5* France 2.0* Belgium 3.5*
Latvia 1.5* Greece 2.0* Yugoslavia, Fed. Rep. 3.5*
Poland 1.5* Ireland 2.0* Finland 8.5*
Romania 1.5* Russian Fed. 2.0* Italy 8.5*
Slovenia 1.5* Sweden 2.0* Albania 10.0*
TFYR Macedonia 1.5* Germany 2.5* Bosnia/Herzegovina -
Austria 2.0* Netherlands 2.5* Czech. Rep. -
Belarus 2.0* Spain 2.5* Lithuania -
Bulgaria 2.0* Switzerland 2.5* Moldova, Rep. -
Croatia 2.0* United Kingdom 2.5* Slovakia -
Denmark 2.0* Norway 3.0* Ukraine -
Estonia 2.0* Portugal 3.0*

New nations are excluded from this list when most of the available statistics pre-date independence.
* Underweight not included.
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