Mortgage Debt Relative to Economy Size : Australia, Canada, U.S.

Australia
1.6 trillion (AUS) GDP
1.3 trillion (AUS) residential mortgage debt
81%

Canada
1.55 trillion (CAN) GDP
1.2 trillion (CAN) residential mortgage debt (http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/fin21-eng.htm)
77%

U.S.A.
16 trillion (US) GDP
11 trillion (US) residential mortgage debt (http://www.federalreserve.gov/econresdata/releases/mortoutstand/current.htm)
69%