Total (public & private) debt relative to the quantity of M1 money:
Total debt divided by the quantity of M1 money. 1916-1970. Showing a high at 1933 and a low at 1946-47.
Data Source: Historical Statistics (Bicentennial Edition)
Total Debt: Series X 393-409
M1 Money: Series X 410-419
Calculations: Excel, Google Docs, Open Office Calc.