There it is -- do your own math.. Except that the number for 2011 isn't at the Treasury site. So it's a year old. Also raw DEBT doesn't include off-book stuff like Soc Sec or any of the "trust funds".
Only one year of Obama admin shown and MOST of 2009 was under 2008 Congressional budget control.. It's just WAAAY too early to put a 4 year term number on Obama -- but my guess would be 60 or 80% increase in debt.
Once the debt starts approaching the yearly GDP for the country -- it becomes much more difficult to rack up a big impressive "increase".
09/30/2010 13,561,623,030,891.79
09/30/2009 11,909,829,003,511.75
09/30/2008 10,024,724,896,912.49
09/30/2007 9,007,653,372,262.48
09/30/2006 8,506,973,899,215.23
09/30/2005 7,932,709,661,723.50
09/30/2004 7,379,052,696,330.32
09/30/2003 6,783,231,062,743.62
09/30/2002 6,228,235,965,597.16
09/30/2001 5,807,463,412,200.06
09/30/2000 5,674,178,209,886.86
09/30/1999 5,656,270,901,615.43
09/30/1998 5,526,193,008,897.62
09/30/1997 5,413,146,011,397.34
09/30/1996 5,224,810,939,135.73
09/29/1995 4,973,982,900,709.39
09/30/1994 4,692,749,910,013.32
09/30/1993 4,411,488,883,139.38
09/30/1992 4,064,620,655,521.66
09/30/1991 3,665,303,351,697.03
09/28/1990 3,233,313,451,777.25
09/29/1989 2,857,430,960,187.32
09/30/1988 2,602,337,712,041.16
09/30/1987 2,350,276,890,953.00
09/30/1986 2,125,302,616,658.42
09/30/1985 * 1,823,103,000,000.00
09/30/1984 * 1,572,266,000,000.00
09/30/1983 * 1,377,210,000,000.00
09/30/1982 * 1,142,034,000,000.00
09/30/1981 * 997,855,000,000.00
09/30/1980 * 907,701,000,000.00
09/30/1979 * 826,519,000,000.00