多数子坛家庭应该是落在$1M - $10M Net Worth 之间 
There are 21,951,000 people/households with a net worth of or above $1 million in the USA.
There are 1,456,000 people/households with a net worth of or above $10 million in the USA.
There are 10, 660 people/households with a net worth of or above $100 million in the USA.
There are now 28,420 so-called centi-millionaires worldwide, up 12% over last year and more than twice the number in 2003
Where the super wealthy live
Countries with the most centi-millionaires ($100M):
- U.S.: 10,660
- China: 2,358
- Germany: 1,050
- India: 1,035
Cities with the most centi-millionaires ($100M):
- New York: 775
- San Francisco Bay Area: 692
- Los Angeles: 504
- London: 388
- Beijing: 365
Source: Henley & Partners, New World Wealth
