what are the population numbers of said countries compared to that of the US?
The US is larger - ahh I see what you mean now, that means it could be even cheaper from economies of scale!
That's the simplistic answer you would expect from liberals. First fewer (non taxpayers) are crossing the borders of Canada, Australia and New Zealand and being treated on the public dime. Second, who has the older population paying less taxes now in their old age. Oh that's right, they will be the first to receive rationed health care so they can be dispatched sooner without taking up those resources. "Hope" it "Changes" before you need it, right.
Back to topic. This Democrat congress doesn't want you to know how it will be paid for. They killed two amendments that would have made the bill public prior to signing. I'm sure Obama appreciates his legion of foreign surrogates, pushing his agenda, but don't sell crazy here, nobody's buying. Hey, try Germany conservatism seems to be on the rise there.