5. "In the aftermath of recessions, there's always a period of jobless recovery," says John Challenger, CEO of global outplacement firm Challenger Gray & Christmas. "We're certainly not optimistic about seeing much improvement in the unemployment rate in 2010."
6. While 221 people fell off the billionaires list this year, 198 people joined the ranks. Twenty-nine from the 2015 list died, while another 29 rejoined the list after having fallen off.