probably only a small small number of them are developed.. 5% would be a high guess. but you already knew that since you've been following this as long as i have.
a good number of the reported sales (95% would be a low guess) are domainer to domainer.... of course, you already knew that too.. but i guess it doesnt hurt to point it out
again............. All this is just IMHOBWDOI

(stands for: "in my humble opinion, but what do i know"... i made that one up just for you, jeff)