{
  "currency": "USD",
  "indicator": "m1",
  "name": "Narrow Money (M1)",
  "description": "Currency in circulation + transaction deposits. RBNZ column A.",
  "category": "Money & Credit",
  "unit": "USD bn",
  "frequency": "Monthly",
  "source": "Federal Reserve",
  "source_url": "",
  "start_date": "2021-09-04",
  "end_date": "2026-09-04",
  "data": []
}