{
  "series_id": "JTS810000000000000_TIGHTNESS_C3MO_AVG",
  "source": "derived",
  "shortName": "Job Tightness (Other Services) (C3MA)",
  "updateFrequency": "monthly",
  "unit": "ratio",
  "derivation": {
    "type": "centered_ma",
    "source": "JTS810000000000000_TIGHTNESS",
    "window": 3,
    "description": "3-month centered moving average. Last point raw."
  }
}