{
  "source": "USDA ERS Feed Grains Yearbook Tables, Tables 12 and 16",
  "source_url": "https://www.ers.usda.gov/media/5766/feed-grains-yearbook-tables-all-years.csv?v=83834",
  "data_page": "https://www.ers.usda.gov/data-products/feed-grains-database/feed-grains-yearbook-tables",
  "documentation": "https://www.ers.usda.gov/data-products/feed-grains-database/documentation",
  "release_date": "2026-09-14",
  "retrieved_date": "2026-09-20",
  "sha256": "471fd9d3a029d069a1fe151089651ac4ef71922590e59d7cd2d090cfc48f1688",
  "source_bytes": 18532883,
  "period_start": "2000-01",
  "period_end": "2026-08",
  "observations": {
    "corn": 320,
    "meal": 317
  },
  "missing_months": {
    "corn": [],
    "meal": [
      "2004-11",
      "2019-09",
      "2019-10"
    ]
  },
  "series": {
    "corn": {
      "description": "No. 2 yellow corn, Central Illinois",
      "source_unit": "USD/bushel",
      "current_basis": "Delivered truck bids to mills and processors",
      "table": 12,
      "ams_report": 3192
    },
    "meal": {
      "description": "High-protein soybean meal, Central Illinois",
      "source_unit": "USD/U.S. short ton",
      "current_basis": "Illinois FOB rail asking prices, 46.5\u201348% protein",
      "table": 16,
      "ams_report": 3511
    }
  },
  "units": {
    "corn_bushel_lb": 56,
    "short_ton_lb": 2000,
    "lb_kg": 0.45359237
  },
  "notes": [
    "Monthly nominal benchmark prices, not individual transaction prices.",
    "No missing value imputation. Data release is a snapshot, not an automatic live feed.",
    "The source calls the soybean meal unit dollars per ton; this is the U.S. short ton, consistent with USDA oilmeal price reporting."
  ]
}