Mortgages account for the largest share, followed by auto loans, student loans, credit cards, and other types of consumer debt. The Big Picture: Then and NowIn 1950, household debt was strikingly different:Debt-to-GDP : Household debt was only about 25–30% of GDP , compared to nearly 75–80% today . : Household debt was only about , compared to nearly . Consumer credit: Tiny by comparison. The real crisis is not financial but philosophical: a crisis of adaptation.