I think we would all love to know these numbers across the board, good bad or otherwise, unfortunately there is no CCSVI clearinghouse that will give you what you are looking for, just dribs and dribs from here and there, which I guess are a small representation of the real numbers which we will never know, but, hopefully with the Hubbard registry and other instititutions tracking of patients, a clearer picture will begin to emerge. You'll be hard pressed to bring any publication to your neuro that states "x numbers treated worldwide with y results".
If and when a double blinded placebo controlled sham treatment trial is brought to fruition and summarily published, it will be worth much more than anectdotal evidence from many hundreds on the internet, as far as your neuro is concerned, even if they DON'T bite...
That's making an assumption that it shows what we think it will show, all skepticism aside for arguments sake.
RRMS Dx'd 2007, first episode 2004. Bilateral stent placement, 3 on left, 1 stent on right, at Stanford August 2009. Watch my operation video: http://www.youtube.com/watch?v=cwc6QlLVtko
, Virtually symptom free since, no relap