I suggest you take a look at the stats for the number of billionaires in the world over the past 10-20 years. Most likely that chart is very much correlated to

I suggest you take a look at the stats for the number of billionaires in the world over the past 10-20 years. Most likely that chart is very much correlated to house prices in prime areas. http://www.wsws.org/asset/571f64b3-ef4c-400b-8c88-ebf662f82cbM/forbes-chart.jpg?rendition=image480 http://www.wsws.org/asset/571f64b3-ef4c-400b-8c88-ebf662f82c... http://www.the-crises.com/wp-content/uploads/2010/12/wealth-inequality-usa-09.jpg http://www.the-crises.com/wp-content/uploads/2010/12/wealth-...