Hey Yurik,
I've added 2016 state GDP data here, and I attempted to update Template:Graph:US Map state highlight (and the Wikipedia equivalent) by changing initYear to 2016, but that simple change seemed to break the initial display before one presses play. So I've reverted my edits in expectance that you'll handle the change.
Another point to note is that I am currently unable to click onto 2016 without creating a range. Might be worth looking into. Cheers!