Apologies if this topic was already covered, but does anyone know if there exists a LD rating system?

Is there a standardized means of rating the level of control in a LD?


eg,

Level 1 LD (lowest level) would be realizing you're dreaming but immediately losing control or awakening

Level 10 LD(highest level) complete and utter control of an LD from beginning to end

...and of course all the levels in between, whatever they would be.

Is there such a system? If so, link me please.
And and if not, would it be possible to create an agreed upon rating system here? Just a geeky little thought that's been bouncing around in my mind.