It's all change in the Forbes rich list of billionaires today.

He was ranked 785th on the Forbes list of billionaires in 2008.

Abramov was listed on the Forbes list of billionaires for 2011 with an estimated net worth of $7.5 billion.

That made him 10th in the 2012 Forbes list of billionaires.

Forbes 2007 list of billionaires estimates his net worth at $2.1 billion.

He was ranked 297th on the 2006 Forbes 400 list of billionaires.

Overall on the Forbes list of billionaires, he is the 491st richest person in the world.

In 2006, he made the Forbes list of billionaires.

He ties for rank 374 on the Forbes list of billionaires with his brother and business partner Taha.

Mansour was the 104th billionaire with $4.9 billion in 2009 according to the Forbes list of billionaires.