Americans have cut back on credit of all kinds, with one notable exception.

According to the Federal Reserve Bank of New York’s quarterly report on debt and credit, U.S. households had $11.42 trillion in debt outstanding in the second quarter. That was down from a peak of $12.5 trillion in the third quarter of 2008, when the financial crisis took hold, and the lowest since the first quarter of 2007. Mortgage debt, home equity loans, credit card debt and auto loans are all down sharply — partly because people are being more careful, but also because many have defaulted.

But student loans are up sharply. There was $550 billion in student debt outstanding in the second quarter, up 25% from $440 billion in the third quarter of 2008.