"The annual federal budget deficit has fallen significantly over the course of the current economic expansion, from a high of 9.8% of gross domestic product (GDP) in FY2009 to 3.2% of GDP in FY2016. However, the debt held by the public has continued to increase, and was equal to 77.0% of GDP at the end of FY2016, the highest level since FY1950. This Insight discusses how deficits responded to previous expansions and recessions. Based on historical experience, recent trends toward achieving fiscal sustainability are likely to reverse the next time the economy enters a recession."
CRS Insight, IN10623
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html