How many people climb v7. 2 kyuu is a V4, and 7 kyuu is a V0 for example. I understa...

How many people climb v7.  2 kyuu is a V4, and 7 kyuu is a V0 for example.  I understa...How many people climb v7.  2 kyuu is a V4, and 7 kyuu is a V0 for example.  I understa...