The six countries have a comparable total population to the US…
This means the U.S. government spent more on health care last year than the governments of Germany, the U.K., Italy, Spain, Austria, and France combined spent to provide universal health care coverage to the whole of their population (335 million in total), which is comparable in size to the U.S. population of 331 million.
4 million more people covered for 2/3 the cost, and for what the US government is spending, it’s not even covering the 331 million people in the US.