Aliko Dangote is the 30th richest person in the world.

Aliko Dangote made $9.2billion in 2013 alone, now worth $30billion

According to a Bloomberg report that was released today, Africa's richest man & founder of Dangote Group, Aliko Dangote, made $9.2billion in 2013 alone, raising his fortune to over $30billion and making him the 30th richest person in the world.
Bill Gates is back to being the richest man in the world after making $15.8 billion in 2013 alone and raising his fortune to $78.5 billion.
Bloomberg’s billionaires index showed that the 300 richest people in the world increased their wealth by $524 billion in 2013 and the aggregate net worth of the world’s top billionaires stood at $3.7 trillion at the close of market on December 31.