United States Federal Debt: Total Public Debt as Percent of Gross Domestic Product, Quarterly, SA, Level – FRED

Federal Debt: Total Public Debt as Percent of Gross Domestic Product (GFDEGDQ188S) (https://fred.stlouisfed.org/series/GFDEGDQ188S) was first constructed by the Federal Reserve Bank of St. Louis in October 2012. It is calculated using Federal Government Debt: Total Public Debt (GFDEBTN) (https://fred.stlouisfed.org/series/GFDEBTN) and Gross Domestic Product, 1 Decimal (GDP) (https://fred.stlouisfed.org/series/GDP): GFDEGDQ188S = ((GFDEBTN/1000)/GDP)*100 GFDEBTN/1000 transforms GFDEBTN from millions of dollars to billions of dollars.