Can't account for any other year but mine and a 2012, but I just measured mine and a buddy's. Mine is 5 inches in diameter and a 2012 is 5.25.

 

Hmmm... Well that cancels the latest version, but I wonder about the 93-whatever version if it's the same or not... Anyone have access to to one to measure for me?

Gunslingertom- other than diameter, did the hinge look similar?

 

No I didn't check. When I saw the size difference, I didn't bother looking into it any farther.