The problem is that list includes post-secondary data about costs for the US. I do not have a source for primary and secondary schools on their own. But, colleges and universities will absolutely skew the data.

This conversation is regarding K-12 schooling, not K-12 and post-secondary.

Edit: I'm real dumb and looked at the table without reading the paragraph on top. Ignore and move past. HOW DO I DO STRIKETHROUGH ON HERE