UK Archaeology Data Service — £13M/yr efficiency gains, ~5:1 return

The United Kingdom's Archaeology Data Service produces £13 million in annual efficiency gains against operating costs — a return of roughly 5:1 (S-0105).

The case is at the lower end of the documented ROI cluster. Even at the lower bound of the range that C-0031 brackets, the return is substantially positive. The figure is also useful as a non-biomedical, non-physics anchor — establishing that the ROI argument generalizes beyond the high-impact disciplines that produce the higher multiples.