In reply to keith-ratcliffe:
I read about this, and wondered why they don't OCR the data first (especially as it's tabular already), then get volunteers either to check it, or to retype/edit/amend it. Would make much better use of people's time and the technology available. I imagine they have some inbuilt checking anyway, e.g. by getting two people to do the same sheet independently, then comparing the results, but OCR would help move things along a bit quicker?
Post edited at 10:05