{
  "version": "2026-09-20",
  "id": "avg-rate-marketable",
  "label": "Average interest rate, total marketable debt",
  "unit": "percent",
  "frequency": "monthly",
  "decimals": 3,
  "provider": "fiscal",
  "sourceLabel": "U.S. Treasury, Fiscal Data: Average Interest Rates on U.S. Treasury Securities",
  "sourceUrl": "https://fiscaldata.treasury.gov/datasets/average-interest-rates-treasury-securities/",
  "fetchedAt": "2026-09-20",
  "lastObservation": "2026-08-31",
  "points": [
    [
      "2010-01-31",
      2.595
    ],
    [
      "2010-02-28",
      2.548
    ],
    [
      "2010-03-31",
      2.501
    ],
    [
      "2010-04-30",
      2.498
    ],
    [
      "2010-05-31",
      2.49
    ],
    [
      "2010-06-30",
      2.479
    ],
    [
      "2010-07-31",
      2.471
    ],
    [
      "2010-08-31",
      2.414
    ],
    [
      "2010-09-30",
      2.401
    ],
    [
      "2010-10-31",
      2.401
    ],
    [
      "2010-11-30",
      2.368
    ],
    [
      "2010-12-31",
      2.365
    ],
    [
      "2011-01-31",
      2.366
    ],
    [
      "2011-02-28",
      2.364
    ],
    [
      "2011-03-31",
      2.37
    ],
    [
      "2011-04-30",
      2.387
    ],
    [
      "2011-05-31",
      2.384
    ],
    [
      "2011-06-30",
      2.38
    ],
    [
      "2011-07-31",
      2.387
    ],
    [
      "2011-08-31",
      2.346
    ],
    [
      "2011-09-30",
      2.326
    ],
    [
      "2011-10-31",
      2.306
    ],
    [
      "2011-11-30",
      2.279
    ],
    [
      "2011-12-31",
      2.274
    ],
    [
      "2012-01-31",
      2.24
    ],
    [
      "2012-02-29",
      2.199
    ],
    [
      "2012-03-31",
      2.187
    ],
    [
      "2012-04-30",
      2.173
    ],
    [
      "2012-05-31",
      2.16
    ],
    [
      "2012-06-30",
      2.159
    ],
    [
      "2012-07-31",
      2.13
    ],
    [
      "2012-08-31",
      2.094
    ],
    [
      "2012-09-30",
      2.103
    ],
    [
      "2012-10-31",
      2.075
    ],
    [
      "2012-11-30",
      2.046
    ],
    [
      "2012-12-31",
      2.043
    ],
    [
      "2013-01-31",
      2.037
    ],
    [
      "2013-02-28",
      1.999
    ],
    [
      "2013-03-31",
      1.992
    ],
    [
      "2013-04-30",
      1.982
    ],
    [
      "2013-05-31",
      1.983
    ],
    [
      "2013-06-30",
      1.992
    ],
    [
      "2013-07-31",
      1.983
    ],
    [
      "2013-08-31",
      1.968
    ],
    [
      "2013-09-30",
      1.981
    ],
    [
      "2013-10-31",
      1.981
    ],
    [
      "2013-11-30",
      1.971
    ],
    [
      "2013-12-31",
      1.975
    ],
    [
      "2014-01-31",
      1.998
    ],
    [
      "2014-02-28",
      1.973
    ],
    [
      "2014-03-31",
      1.97
    ],
    [
      "2014-04-30",
      2.007
    ],
    [
      "2014-05-31",
      2.008
    ],
    [
      "2014-06-30",
      2.029
    ],
    [
      "2014-07-31",
      2.03
    ],
    [
      "2014-08-31",
      2.028
    ],
    [
      "2014-09-30",
      2.037
    ],
    [
      "2014-10-31",
      2.016
    ],
    [
      "2014-11-30",
      2.017
    ],
    [
      "2014-12-31",
      2.013
    ],
    [
      "2015-01-31",
      2.029
    ],
    [
      "2015-02-28",
      2.005
    ],
    [
      "2015-03-31",
      2.001
    ],
    [
      "2015-04-30",
      2.011
    ],
    [
      "2015-05-31",
      2.013
    ],
    [
      "2015-06-30",
      2.023
    ],
    [
      "2015-07-31",
      2.022
    ],
    [
      "2015-08-31",
      2.024
    ],
    [
      "2015-09-30",
      2.043
    ],
    [
      "2015-10-31",
      2.069
    ],
    [
      "2015-11-30",
      2.027
    ],
    [
      "2015-12-31",
      2.041
    ],
    [
      "2016-01-31",
      2.063
    ],
    [
      "2016-02-29",
      2.04
    ],
    [
      "2016-03-31",
      2.034
    ],
    [
      "2016-04-30",
      2.054
    ],
    [
      "2016-05-31",
      2.032
    ],
    [
      "2016-06-30",
      2.029
    ],
    [
      "2016-07-31",
      2.026
    ],
    [
      "2016-08-31",
      1.999
    ],
    [
      "2016-09-30",
      1.996
    ],
    [
      "2016-10-31",
      1.984
    ],
    [
      "2016-11-30",
      1.964
    ],
    [
      "2016-12-31",
      1.986
    ],
    [
      "2017-01-31",
      2.004
    ],
    [
      "2017-02-28",
      2.009
    ],
    [
      "2017-03-31",
      2.027
    ],
    [
      "2017-04-30",
      2.045
    ],
    [
      "2017-05-31",
      2.044
    ],
    [
      "2017-06-30",
      2.066
    ],
    [
      "2017-07-31",
      2.08
    ],
    [
      "2017-08-31",
      2.084
    ],
    [
      "2017-09-30",
      2.094
    ],
    [
      "2017-10-31",
      2.1
    ],
    [
      "2017-11-30",
      2.105
    ],
    [
      "2017-12-31",
      2.126
    ],
    [
      "2018-01-31",
      2.149
    ],
    [
      "2018-02-28",
      2.17
    ],
    [
      "2018-03-31",
      2.195
    ],
    [
      "2018-04-30",
      2.235
    ],
    [
      "2018-05-31",
      2.262
    ],
    [
      "2018-06-30",
      2.287
    ],
    [
      "2018-07-31",
      2.316
    ],
    [
      "2018-08-31",
      2.337
    ],
    [
      "2018-09-30",
      2.365
    ],
    [
      "2018-10-31",
      2.402
    ],
    [
      "2018-11-30",
      2.429
    ],
    [
      "2018-12-31",
      2.455
    ],
    [
      "2019-01-31",
      2.479
    ],
    [
      "2019-02-28",
      2.488
    ],
    [
      "2019-03-31",
      2.501
    ],
    [
      "2019-04-30",
      2.507
    ],
    [
      "2019-05-31",
      2.508
    ],
    [
      "2019-06-30",
      2.507
    ],
    [
      "2019-07-31",
      2.492
    ],
    [
      "2019-08-31",
      2.463
    ],
    [
      "2019-09-30",
      2.436
    ],
    [
      "2019-10-31",
      2.404
    ],
    [
      "2019-11-30",
      2.378
    ],
    [
      "2019-12-31",
      2.36
    ],
    [
      "2020-01-31",
      2.344
    ],
    [
      "2020-02-29",
      2.32
    ],
    [
      "2020-03-31",
      2.213
    ],
    [
      "2020-04-30",
      1.964
    ],
    [
      "2020-05-31",
      1.843
    ],
    [
      "2020-06-30",
      1.753
    ],
    [
      "2020-07-31",
      1.714
    ],
    [
      "2020-08-31",
      1.661
    ],
    [
      "2020-09-30",
      1.635
    ],
    [
      "2020-10-31",
      1.625
    ],
    [
      "2020-11-30",
      1.583
    ],
    [
      "2020-12-31",
      1.552
    ],
    [
      "2021-01-31",
      1.541
    ],
    [
      "2021-02-28",
      1.512
    ],
    [
      "2021-03-31",
      1.499
    ],
    [
      "2021-04-30",
      1.491
    ],
    [
      "2021-05-31",
      1.485
    ],
    [
      "2021-06-30",
      1.472
    ],
    [
      "2021-07-31",
      1.476
    ],
    [
      "2021-08-31",
      1.458
    ],
    [
      "2021-09-30",
      1.47
    ],
    [
      "2021-10-31",
      1.455
    ],
    [
      "2021-11-30",
      1.437
    ],
    [
      "2021-12-31",
      1.432
    ],
    [
      "2022-01-31",
      1.424
    ],
    [
      "2022-02-28",
      1.436
    ],
    [
      "2022-03-31",
      1.482
    ],
    [
      "2022-04-30",
      1.528
    ],
    [
      "2022-05-31",
      1.607
    ],
    [
      "2022-06-30",
      1.693
    ],
    [
      "2022-07-31",
      1.777
    ],
    [
      "2022-08-31",
      1.886
    ],
    [
      "2022-09-30",
      1.994
    ],
    [
      "2022-10-31",
      2.104
    ],
    [
      "2022-11-30",
      2.237
    ],
    [
      "2022-12-31",
      2.32
    ],
    [
      "2023-01-31",
      2.434
    ],
    [
      "2023-02-28",
      2.519
    ],
    [
      "2023-03-31",
      2.576
    ],
    [
      "2023-04-30",
      2.6
    ],
    [
      "2023-05-31",
      2.691
    ],
    [
      "2023-06-30",
      2.792
    ],
    [
      "2023-07-31",
      2.873
    ],
    [
      "2023-08-31",
      2.962
    ],
    [
      "2023-09-30",
      3.016
    ],
    [
      "2023-10-31",
      3.096
    ],
    [
      "2023-11-30",
      3.155
    ],
    [
      "2023-12-31",
      3.174
    ],
    [
      "2024-01-31",
      3.211
    ],
    [
      "2024-02-29",
      3.259
    ],
    [
      "2024-03-31",
      3.277
    ],
    [
      "2024-04-30",
      3.297
    ],
    [
      "2024-05-31",
      3.334
    ],
    [
      "2024-06-30",
      3.344
    ],
    [
      "2024-07-31",
      3.391
    ],
    [
      "2024-08-31",
      3.415
    ],
    [
      "2024-09-30",
      3.392
    ],
    [
      "2024-10-31",
      3.363
    ],
    [
      "2024-11-30",
      3.355
    ],
    [
      "2024-12-31",
      3.336
    ],
    [
      "2025-01-31",
      3.337
    ],
    [
      "2025-02-28",
      3.346
    ],
    [
      "2025-03-31",
      3.347
    ],
    [
      "2025-04-30",
      3.354
    ],
    [
      "2025-05-31",
      3.362
    ],
    [
      "2025-06-30",
      3.375
    ],
    [
      "2025-07-31",
      3.399
    ],
    [
      "2025-08-31",
      3.415
    ],
    [
      "2025-09-30",
      3.406
    ],
    [
      "2025-10-31",
      3.393
    ],
    [
      "2025-11-30",
      3.382
    ],
    [
      "2025-12-31",
      3.362
    ],
    [
      "2026-01-31",
      3.348
    ],
    [
      "2026-02-28",
      3.355
    ],
    [
      "2026-03-31",
      3.365
    ],
    [
      "2026-04-30",
      3.373
    ],
    [
      "2026-05-31",
      3.386
    ],
    [
      "2026-06-30",
      3.411
    ],
    [
      "2026-07-31",
      3.443
    ],
    [
      "2026-08-31",
      3.475
    ]
  ]
}