In the process of cornering the criter, I had to disturb a pile of wood pellet sacks from last winter's burning operation. I was saving those to count them, but I've done a terrible job of keeping track of how much I actually burnt per month.
I have some notes in twitter account, which turns out to be a terrible place to put anything you want to lookup later. Best I can find is numbers for January and March, 1,400 and 1,600; and 1,320 for April. Overall I had six tons, and there's about 18 bags left out of 300.
It seems I burn as much pellets as I have. So the lesson there for conservation, buy less pellets. Temperatures already getting down to 40s at night, so we'll see how that goes.