{
  "series_id": "MANEMP_C3MO_AVG",
  "source": "derived",
  "shortName": "Manufacturing Payrolls (Centered 3Mo Avg)",
  "updateFrequency": "monthly",
  "unit": "thousands",
  "derivation": {
    "type": "centered_ma",
    "source": "MANEMP",
    "window": 3,
    "description": "3-month centered moving average of manufacturing employees"
  }
}