Quiz question

I thought I'd solved this, but now I think I'm back to square one! Any hints or nudges appreciated as I'm going around in circles I think! '10 = New Zealand; 9 = Hong Kong; 8 = China; 7 = Switzerland; 6 = Canada; 5 = Australia; 4 = UK; 3 = Japan – so where is at number 2 if USA is at number 1?'