Every dot is a U.S. industry at the finest public detail (6-digit NAICS, 2022 Economic Census). Horizontal: how much of the industry's revenue goes to its four largest firms. Vertical: labor's share of the value the industry adds (payroll ÷ value added; switch to payroll ÷ revenue for exact 6-digit detail). Click a dot for its 1987–2025 labor-share history, its 2017→2022 drift, and where its jobs sit today (QCEW, 2026 Q1).