Reference:  Fortune, September 7,1992. "The Billionaires." pp . 98-138.

Description:   Fortune magazine annually publishes the list of all known 
billionaires in the world.  The 1992 list included 233 individuals or 
families. Their wealth, age and geographic location (Asia, Europe, Middle 
East, United States or Other) are reported.

Variables:
   Wealth of family or individual in billions of dollars
   Age in years (for families it is the maximum age of family members)
   Region of the World (Asia, Europe, Middle East, United States and Other)
         coded as A, E, M, U, and O