This is in dollars, but 10% of healthcare spending in the US equates to a good amount of health I reckon https://www.sciencedirect.com/science/article/pii/S016041201...

I was asking about the GP's assertion about health impact of nuclear.

The dispersed fallout? Hard to quantify because of it's dispersedness and long term slowness. But it is for example plutonium and we know it's effects on life on Earth, so one could proceed from there with some math and futurological trend extrapolation. And simply by using the knowledge we have about plutonium mixed with common sense.

I think GP was talking about CO2 (affect millions already, will still be present in a thousand years)