U.S. NATIONAL DEBT CLOCK The Outstanding Public Debt as of 04 Sep 2012 at 03:46:22 PM GMT is:
The estimated population of the United States is 313,443,391
so each citizen's share of this debt is $51,074.46.The National Debt has continued to increase an average of $3.88 billion per day since September 28, 2007
http://www.brillig.com/debt_clock/
http://www.usadebtclock.com/ This clock claims we have hit 16 Trillion already