Find these numbers a little hard to believe. 10% for the non-tacair/helo communities. How would that work out.
To answer your actual question, I have no idea. The numbers were admittedly estimates that I heard at a briefing given by the detailing shops in Millington. I make no claims as to the "goodness" of the gouge.
I have heard the 60% number regarding helos bantered about frequently however, so it is, at the least, popular gouge. Also, hinge promotion rates in those communities tend to support an increasing size and increasing opportunity. Again though, other factors could be at play.
Just passing along what I heard from a more reputable source than most.