Net Worth Reaches $1 Trillion For First Time Since 2000NEW YORK -- The nation's billionaire's club may not be quite as exclusive as it once was. There are now 313 billionaires in the country, the largest number ever and a huge jump over last year's 262 members, according to Forbes magazine, which Thursday released its annual ranking of the 400 richest Americans. The combined net worth of the 400 rose $45 billion, reaching $1 trillion this year for the first time since 2000, before the dot-com bust. Retaining the top spot was Microsoft founder Bill Gates, whose $48 billion in...