Hi Liz, that's a good idea!
It may not be very precise, as Belton says, but it should give a general idea - are most people advanced or most people beginners - about us listeners.
I voted "1 year" - really it's just a couple of months that I'm "studying" ...
well, trying to study...
... I *do* know the -te form
but better don't assume any other knowledge, Belton