Outstanding domestic marketable debt rose sharply starting in March 2021 Bonds outstanding (left scale) Treasury bills outstanding (left scale) Ratio of net general federal government debt to gross domestic product (GDP) (right scale) 34267.9131.6 262.1134.132 29256.4117.0 29292.5192.5 367.833175.9 162.834414.6 33163.4448.5 180.7469.133 32153.0477.7 30494.5135.7 30510.9138.1 30136.7538.3 28110.7575.4 27568.9134.3 151.925595.2 381.531660.4 730.835304.1 825.0248.937 870.5218.838 924.8217.838 966.5193.837 1003.3190.637