The United Nations Development Programme has a tool that presents some statistics and comparisons regarding many development indicators.
If you are interested, take a look at the website: Human Development Trends 2005
The presentation number 6 – Differences shows that the income difference WITHIN Namibia is like BETWEEN the richest and the poorest countries of the world. Curiously I decided to compare Namibia to my country: Brazil. Bellow you can see this comparison. Even though Brazil has a higher child survival percentage, the difference between the 20% richer and 20% poorer is very big, almost like Namibia.
Are you curious about your country ? Go to the website, watch it, and make your comparisons.