So using a figure that takes account of inflation/deflation, growth (or lack thereof) in GDP, and other real-world variables is less reliable than just relying on raw investment figures, is it? It'd be less gullible of me to just look at the amount of money going into services comparatively, and just ignore all other factors? Or to completely disregard figures because people I know have had bad experiences in the health service, despite the fact that the figures don't even necessarily contradict it?
Look, I'm not trying to be a tory apologist here - I'm trying to be neutral and just stick to what makes good analysis and how we can intelligently try to analyse the problems of the health service. With all due respect, even if you've 'heard of' the term, you don't come across as particularly aware of its meaning.