{
  "industry": "Heavy & Civil Engineering Construction",
  "naics": "237",
  "geo": "Arkansas",
  "grain_of_margin": "national",
  "national_net_margin_pct": 11.2,
  "local_establishments": 416.0,
  "local_avg_weekly_wage": 1362.0,
  "note": "Margin is national. Local counts are state-grain. No local margin exists."
}