The workforce expressed in full-time equivalents, the unit of workload 4.4.4 recommends over headcount because it gives a fuller view of total human capital, with a cross-reference to 4.7.4 (required metrics); the FTE basis also underlies the per-FTE productivity metrics. Continues the first edition's metric 'Full-time equivalents'.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.