Manhattan's wealthiest residents have plenty to spend. Census data show that the wealthiest 20 percent of Manhattan residents made nearly 40 times more than the poorest 20 percent--$351,333, on average, compared with $8,855. -- "Mansions in the Sky", by Christine Haugney, New York Times, 2007-09-09 http://www.nytimes.com/2007/09/09/realestate/09cover.html