1940
1945
1950
1955
1960
1965
1970
1975
1980
1985
1990
1995
2000
2005
2010
Debt
$0
$2 000 bil.
$4 000 bil.
$6 000 bil.
$8 000 bil.
$10 000 bil.
$12 000 bil.
GDP
0%
20%
40%
60%
80%
100%
120%
140%
Extra Axes Units Comparison Sample