{
  "request_status": "success",
  "message": "Changes from 2017 to 2022",
  "data": {
    "from_year": 2017,
    "to_year": 2022,
    "changes": [],
    "total_changes": 0
  },
  "data_sources": [
    {
      "source": "census_naics",
      "dataset": "NAICS 2017",
      "cache": "miss",
      "data_url": "https://www.census.gov/naics/",
      "updated": "2025-01"
    }
  ]
}