Pretty low -- sort of depends on my 8x10 film supply. I have a heavy hand when self editing prior to slipping in a film holder, so a couple of images (2 to 4 sheets exposed) from a half day in the Redwoods (10am to 4pm) would be a productive day. Hopefully I'll be happy with what is on the negatives. But I will also have days under the redwoods that I'll expose all 6 or 7 of my film holders. A good month would be 4 or 5 trips into the redwoods, though I usually do not photograph much during the summer there. A normal month would be 1 to 3 trips.
Do I count one 8x10 sheet of film as one roll of 120 (same area)? I use more 120 in the Summer, especially with the family out and about. But in the end, I don't know exactly how much film I use in a year -- don't know if I want to know. I know I am low on film, so I have been active. As the druggie said when he was asked about his views on the Drug Problem, "What drug problem? My supply is adequate."
I need a bunch of 8x10 FP4+. And a bunch of something in 120 -- not too fussy, really. TMax 400, Tri-X, FP4, etc...time to check out Freestyle prices! I am down to one roll of 120 -- some Tech Pan I would rather save for some need to pump up the contrast. My 8x10 film supply is down to one, maybe two trips into the Redwoods (and an idea for a series of images ripening up). Time to see my connection...
Vaughn