"Last year, more than 2,000 people on earth were worth $1 billion or…

"Last year, more than 2,000 people on earth were worth $1 billion or more, 185 more than in 2011, according to the global research firm WealthX. And that’s just the really big bucks. Lower the bar to include people worth $30 million or more—ultra-high-net-worth individuals, as they’re now called—and there are 187,000 worldwide."

http://www.cntraveler.com/features/2013/03/how-the-one-percent-travels-luxury-vacations?intcid=trail_gl