Do you care about trends? Like an increase from 19% to 28% between 2017 and 2023?

Sure, but if that trend turns out to be an increase in non-English speakers it tells us less about the state of literacy, which is the thing I'm interested in here.

The national results page literally has a section where it shows separate results for native-born and non-native born participants. You claim that you're interested, so it's strange to see you speculate about what "turns out" when the answer is so conveniently available.