So, you're talking subframe only? If so, probably 2006 and later would match the 2011, but there may be some subtle differences that make a difference...or not. It's possible the 2006-2015 match as they changed the plastic a bit starting 2016. I don't think anybody knows absolutely for sure on this one. If I were wanting to know for sure, I'd go check the part numbers of each year on online microfiche...which you can do yourself easily.
I checked the Yamaha parts database and found the part number for the "Rear Frame, Comp." was the same on similar models from 2006 - 2018. Mine is a 1300A, so I didn't look at the CA or ES models. That really opens up my shopping window.