For what it's worth, I attended a conference for program directors to help them attract medical students. For what it's worth, they told us that over 60% of AMG's match with their first choice. The fudge factor to consider is that it covers all specialities and not just anesthesia. I caution you to not take too much stock in ANY stat, because the market for anesthesia changes from year to year. Plus many students don't fill out their rank list correctly.
The only person that truly matters is you and your rank list. If your application is strong and you interview well, that is far more important than any market forces that pertain to the anesthesia match.
As I tell medical students who ask me about the match, where you match is less important than just getting a spot. One of my good friends had to go out to Oklahoma to do his plastics fellowship, not particularly desirable for someone who was born and raised in New Jersey. And guess what? He is a really good plastic surgeon that practices here in New Jersey.
I guess my point is that there are over 120 programs out there. Don't stress. You will probably get a top choice, and four years from now, you won't be able to picture yourself at any place other than where you ended up.