Read a really interesting article in the Guardian http://www.guardian.co.uk/world/2009/oct/05/africa-ibrahim-index-governments about a development index called the Ibrahim Index. It was "invented" by a wealthy businessman and philantropist called Mo Ibrahim, that wanted to keep track of the development in the African states in a better way. The index, which is a multi-component index, measure indicators such as safety and security, participation and human rights, sustainable economic opportunity and human development.
The worst perfomer - no surprise here - is Somalia, way behind even the other bad performing countries. (Chad 2nd & Zimbabwe 3rd from the bottom)