To see the complete ranking, go the CIA World Factbook. Here is the top 10:
1 Liechtenstein $118,000
2 Qatar $101,000
3 Luxembourg $85,100
4 Bermuda $69,900
5 Kuwait $60,800
6 Norway $57,500
7 Jersey $57,000
8 Brunei $54,100
9 Singapore $52,900
10 United States $48,000
Here is something the CIA reports about Liechtenstein (which is small with a population 35,000 and is only 160 square kilometers in area):
"Despite its small size and limited natural resources, Liechtenstein has developed into a prosperous, highly industrialized, free-enterprise economy with a vital financial service sector and the highest per capita income in the world. The Liechtenstein economy is widely diversified with a large number of small businesses. Low business taxes - the maximum tax rate is 20% - and easy incorporation rules have induced many holding companies to establish nominal offices in Liechtenstein, providing 30% of state revenues. The country participates in a customs union with Switzerland and uses the Swiss franc as its national currency. It imports more than 90% of its energy requirements. Liechtenstein has been a member of the European Economic Area (an organization serving as a bridge between the European Free Trade Association (EFTA) and the EU) since May 1995. The government is working to harmonize its economic policies with those of an integrated Europe. In 2008 Liechtenstein came under renewed international pressure - particularly from Germany - to improve transparency in its banking and tax systems."
In last place was Zimbabwe at $200. With 118,000/200 = 590, it means that the standard of living is 590 times higher in Liechtenstein than in Zimbabwe.
The country of Guinea-Bissau has a population of 1.5 million. But their GDP was only about $900 million. That is less money than the movie "The Darknight" has made, even if you take into account its production costs. Click here for details.