February 2010 - $14.294 trillion
December 2009 - $12.394 trillion
February 2009 - $12.104 trillion
October 2008 - $11.315 trillion
July 2008 - $10.615 trillion
September 2007 - $9.815 trillion
March 2006 - $8.965 trillion
November 2004 - $8.184
May 2003 - $7.384 trillion
June 2002 - $6.4 trillion
August 1997 - $5.95 trillion
March 1996 - $5.5 trillion
August 1993 - $4.9 trillion
April 1993 - $4.37 trillion
November 1990 - $4.145 trillion
October 1990 - $3.23 trillion
November 1989 - $3.1227 trillion
August 1989 - $2.87 trillion
September 1987 - $2.8 trillion
August 1987 - $2.352 trillion
July 1987 - $2.32 trillion
October 1986 - $2.3 trillion
August 1986 - $2.111 trillion
December 1985 - $2.0787 trillion
November 1985 - $1.9038 trillion
October 1984 - $1.8238 trillion
July 1984 - $1.573 trillion
May 1984 - $1.52 trillion
November 1983 - $1.49 trillion
May 1983 - $1.389 trillion
September 1982 - $1.2902
June 1982 - $1.1431 trillion
September 1981 - 1.0798 trillion
September 1981 - $999.8 billion
February 1981 - $985 billion
December 1980 - $935.1 billion
June 1980 - $925 billion
September 1979 - $879 billion
April 1979 - $830 billion
August 1978 - $798 billion
October 1977 - $752 billion
June 1976 - $700 billion
March 1976 - $627 billion
November 1975 - $595 billion
February 1975 - $577 billion
June 1974 - $495 billion
December 1973 - $475.7 billion
October 1972 - $465 billion
March 1972 - $450 billion
March 1971 - $430 billion
June 1970 - $395 billion
April 1969 - $377 billion
June 1967 - $358 billion
March 1967 - $336 billion
June 1966 - $330 billion
June 1965 - $328 billion
June 1964 - $324 billion
November 1963 - $315 billion
May 1963 - $309 billion
July 1962 - $308 billion
March 1962 - $300 billion
June 1961 - $298 billion
June 1960 - $293 billion
June 1959 - $295 billion
September 1958 - $288 billion
February 1958 - $280 billion
July 1956 - $278 billion
August 1954 - $281 billion
June 1946 - $275 billion
April 1945 - $300 billion
June 1944 - $260 billion
April 1943 - $210 billion
March 1942 - $125 billion
February 1941 - $65 billion
June 1940 - $49 billion
December 1939 - $45 billion
December 1919 - $43 billion
The U.S. debt ceiling history began way back in 1917 with the Second Liberty Bond Act, which helped finance the United States'
entry into World War I.
Source:
http://usgovinfo.about.com/od/federalbudgetprocess/a/US-Debt-Ceiling-History.htm