The numbers in wiki get ref'd back to:
Overview National Health Expenditure Data
I guess I wouldn't be surprised at differences, the methodology might not be the same, and they might not be apples-to-apples at all.
But in a more general sense, whatever number we use, I am having trouble with the "conclusion", which seems to be (paraphrasing) - Canada has lower admin costs, Canada has single payer, so if US had single payer, the US would have lower costs.
I think that the reasons that the US has higher costs are much more complex than that. You know, what we really need is a document like the "
energy conservation without the hot air".
David MacKay: Sustainable Energy - without the hot air: Industry leaders
Something that would line up all these costs and show the relative amounts and what can be clipped and what cannot. When we talk about changing one, it might just shift the cost somewhere else. We need the big picture.
-ERD50