2.12 Public sector authorities keep records of changes made to PFI deals. We obtained these records for just over a third of the projects we surveyed and extracted the cost of jobs which are relatively uniform and comparable across different PFI projects. We then standardised to take account of known regional pricing variations. Figure 9 indicates that there were wide variations in the amount charged from project to project. The number of projects is relatively small as many were unable to separate base costs from lifecycle and maintenance provisions and we could not therefore make a direct comparison with benchmarks.