Warren Buffett, the American stock god, spent $44 billion.
Lakshmi Mittal, the boss of the Indian steel magnate, has $25 billion.
4 Mexican telecommunications giant Carlos Slim He Lu $23.8 billion.
5 Saudi Arabian Prince Alwaleed bin Talal $23.7 billion.
Ingvar kamprad, the founder of Swedish furniture giant IKEA, spent $23 billion.
7 paul allen, one of the founders of Microsoft, 2 1 billion dollars.
8 German "supermarket king" karl albrecht18.5 billion US dollars.
9 Lawrence Ellison, founder of Oracle Bone Inscriptions Software Company, USD 654.38+0.84 billion.
10 Robson Walton, one of the owners of Wal-Mart, owns18.3 billion dollars.