View the ratio of federal debt to the economic output of the U.S., which can indicate economic health and the sustainability of government borrowing.

Federal Debt Held by the Public as Percent of Gross Domestic Product (FYGFGDQ188S) (https://fred.stlouisfed.org/series/FYGFGDQ188S) was first constructed by the Federal Reserve Bank of St. Louis in October 2012. It is calculated using Federal Debt Held by the Public (FYGFDPUN) (https://fred.stlouisfed.org/series/FYGFDPUN) and Gross Domestic Product, 1 Decimal (GDP) (https://fred.stlouisfed.org/series/GDP): FYGFGDQ188S = ((FYGFDPUN/1000)/GDP)*100 FYGFDPUN/1000 transforms FYGFDPUN from millions of dollars to billions of dollars.