{
  "reference_comparison": [
    {
      "years": 1,
      "annual_probability": 0.1,
      "reference_percent": 10,
      "calculated_percent": 10.0,
      "difference_percentage_points": 0.0
    },
    {
      "years": 1,
      "annual_probability": 0.04,
      "reference_percent": 4,
      "calculated_percent": 4.0,
      "difference_percentage_points": 0.0
    },
    {
      "years": 1,
      "annual_probability": 0.02,
      "reference_percent": 2,
      "calculated_percent": 2.0,
      "difference_percentage_points": 0.0
    },
    {
      "years": 1,
      "annual_probability": 0.01,
      "reference_percent": 1,
      "calculated_percent": 1.0,
      "difference_percentage_points": 0.0
    },
    {
      "years": 10,
      "annual_probability": 0.1,
      "reference_percent": 65,
      "calculated_percent": 65.13215599,
      "difference_percentage_points": 0.1321559900000011
    },
    {
      "years": 10,
      "annual_probability": 0.04,
      "reference_percent": 34,
      "calculated_percent": 33.516736400849894,
      "difference_percentage_points": -0.4832635991501064
    },
    {
      "years": 10,
      "annual_probability": 0.02,
      "reference_percent": 18,
      "calculated_percent": 18.29271931124531,
      "difference_percentage_points": 0.29271931124531037
    },
    {
      "years": 10,
      "annual_probability": 0.01,
      "reference_percent": 10,
      "calculated_percent": 9.561792499119552,
      "difference_percentage_points": -0.43820750088044846
    },
    {
      "years": 20,
      "annual_probability": 0.1,
      "reference_percent": 88,
      "calculated_percent": 87.84233454094309,
      "difference_percentage_points": -0.15766545905691487
    },
    {
      "years": 20,
      "annual_probability": 0.04,
      "reference_percent": 56,
      "calculated_percent": 55.79975661205923,
      "difference_percentage_points": -0.20024338794077323
    },
    {
      "years": 20,
      "annual_probability": 0.02,
      "reference_percent": 33,
      "calculated_percent": 33.23920282449055,
      "difference_percentage_points": 0.23920282449054753
    },
    {
      "years": 20,
      "annual_probability": 0.01,
      "reference_percent": 18,
      "calculated_percent": 18.209306240276916,
      "difference_percentage_points": 0.20930624027691636
    },
    {
      "years": 30,
      "annual_probability": 0.1,
      "reference_percent": 96,
      "calculated_percent": 95.76088417247838,
      "difference_percentage_points": -0.23911582752161564
    },
    {
      "years": 30,
      "annual_probability": 0.04,
      "reference_percent": 71,
      "calculated_percent": 70.61423567692941,
      "difference_percentage_points": -0.38576432307058894
    },
    {
      "years": 30,
      "annual_probability": 0.02,
      "reference_percent": 45,
      "calculated_percent": 45.451568061756284,
      "difference_percentage_points": 0.4515680617562836
    },
    {
      "years": 30,
      "annual_probability": 0.01,
      "reference_percent": 26,
      "calculated_percent": 26.02996266117196,
      "difference_percentage_points": 0.029962661171961003
    }
  ],
  "one_percent_30_year_at_least_one_percent": 26.02996266117196,
  "one_percent_30_year_at_least_two_exceedance_years_percent": 3.614799831224094,
  "one_percent_30_year_expected_exceedance_years": 0.3,
  "illustrative_rising_probability_30_year_percent": 36.46294181062321,
  "constant_two_percent_30_year_percent": 45.451568061756284,
  "interpretation": "Reference consistency check plus analytic scenarios; not observed flood data or a local forecast."
}