How billionaires get richer, growtopia get richer

How rich are billionaires getting?

The answer is: They are getting richer.

The Forbes Billionaires Index reveals the top 10 richest people in the world, according to the U.S. Census Bureau, and the number of billionaires who are worth at least $1 billion.

The index shows the total worth of billionaires in the U, the United Kingdom, France, Germany, Japan, Canada, Spain, Italy, the U