So, who is reading up on Gabon?
We do have a scale ranging from Gabon and Ethiopia to Algeria, Albania, China, South Korea and Singapore.
The data is quite easy to get, but there is none on Taiwan, Haiti and Benin, and the data for Latvia is easy to get wrong...
It looks like the solution lies in the Asia-compley (China, North and South Korea, Taiwan) or in Africa....
I have no idea, thus I am going to read up in wikipedia on GAbon...
EDIT: Population density is sthg that comes up, but it's not very likely (Brazil). On second look, it looks like it is correlated with Development, with the only exception here being Singapore and South Korea. I guess it is a rate of some social indicator (Children mortality, population concentration, etc. ...)