{
  "run": "010-sotu-reading-level",
  "as_of": "2026-07-13",
  "source": "State of the Union corpus (sotu package) + Flesch-Kincaid (textstat)",
  "n": 249,
  "years": [
    1790,
    2026
  ],
  "fit": {
    "slope_per_year": -0.0487,
    "slope_per_century": -4.9,
    "intercept": 107.9,
    "slope_ci95_century": [
      -5.2,
      -4.5
    ],
    "r2": 0.774,
    "p": 8.003111008701878e-82,
    "resid_sd": 1.77
  },
  "spoken_fit": {
    "slope_per_century": -4.4,
    "r2": 0.699,
    "p": 9.672407695419264e-37,
    "n": 136
  },
  "written_mean": 17.8,
  "written_n": 113,
  "spoken_mean": 12.5,
  "spoken_n": 136,
  "first": {
    "year": 1790,
    "pres": "Washington",
    "grade": 22.34
  },
  "last": {
    "year": 2026,
    "pres": "Trump",
    "grade": 7.23
  },
  "highest": {
    "year": 1815,
    "pres": "Madison",
    "grade": 24.57
  },
  "lowest": {
    "year": 2026,
    "pres": "Trump",
    "grade": 7.23
  },
  "era_means": {
    "1790-1850": 19.2,
    "1850-1900": 16.8,
    "1900-1950": 14.4,
    "1950-2000": 11.7,
    "2000-2026": 9.4
  }
}