Now I can answer questions about private plus public debt for the USA, and it's not pretty.
For Q1 2006, estimated outstanding 27.1 trillions USD of total domestic non financial debt composed of 43.6% household (11.8T), 31.7% business (8.6T), 24.7% (6.7T) government (local, state and federal). USA estimated 2006 GDP is 13.0 trillions USD.
Public debt is thus only one quarter of the outstanding debt.
All debts are growing at double digit rate in Q1 2006.