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Timeline:
This timeline shows a graph from 2008 to 2008 of Sub-Saharan Africa . No data until 2007. Number of actual observations by date: 1.
Source name:
World Development Indicators
Source organization:
United Nations Educational, Scientific, and Cultural Organization (UNESCO) Institute for Statistics.
Categories, topics:
Science & Technology
Last updated:
apr 23, 2017
Indicators value changes by year
At the date of observation
Value
Absolute change
Change from the previous value
jan 1, 2008
0.549
+0.549
0.0%
Ranking of countries by current statistics by years