~80% of the US claims to be able to swim, though I've found some sources that say only ~60% have the "five basic swimming skills," but they don't seem to provid

~80% of the US claims to be able to swim, though I've found some sources that say only ~60% have the "five basic swimming skills," but they don't seem to provide any details around how they determined that vs. the people self reporting the ability to swim. I'm not even finding consistent details on what the 5 skills even are, though being able to get into the water, float, tread water, perform some sort of basic swimming stroke, and get out of the water were probably the most numerous. I don't see how someone could claim they could swim and not be thinking of all of those things, though.