Thank you! Indeed that would be a (rather rough) first approximation. It's more complex than that though.
First, I'm not convinced that US is less autocratic than China. European countries of course are, but US is not a functioning democracy anymore; it's corporations who decides how the Congress will vote, not citizens.
Second - I think we might be using a different definition of "corruption". In US many mechanisms that would normally be considered corruption are legal, and thus aren't technically a corruption.
And yeah, would be great to have more reliable numbers for China. I don't think that's due to the "grip"; rather, it's a cultural thing: Chinese don't seem to value openness same way we do. At the same time, China is absurdly huge; I'm not sure we can have reliable numbers for all of the geographical Europe, and China is twice that.
