We won't get into my stash. Yes, it's large and no, I haven't sewn much this year.
I also don't generally go on fabric fasts; I do well enough when I feel I have too much and stop buying. I've been in that hold pattern for a couple of years.
I have purchased about 66 yards of fabric last month, and about 50 more all year long. I have a planned 10-20 yard purchase next month or so, and that will be the end of what I buy. 50 yards of this, however, was for a wedding dress. While I don't expect to use all the fabric (11 yds of crepe de chine, 25 of satin and 15 of china silk), my cost sheet accounted for all of it, so what is left is going to be a "freebie" as it were; it will neither get added to the stash nor taken from it when I use it. The rest is either stuff I used fairly quick or am currently working on.
My goal for the year was about 200 yards out, which is about 2 garments a week on average in yardage, but as you can see, about 25% of my yearly goal is one dress. The SWAKOP is about 20% of the total (about 37 yards), and another 15 yards for my daughter to get a few things (7%), and haven't sewn for myself enough to worry about. So within 3 months, I'll have a little over half of yearly sewing out of the way, although the garment total is far below, leaving me a little under 100 yards to go within a 10 week period.
My in/out of fabric is odd. I often do weird fabric hogs which accounts for a massive amount out quickly, and I may add or may not...nothing is set in stone. I also don't do one garment until it is finished; a lot of the time I have several things going at once, so my fabric being used is X amount, but not counted until I finish it and it is in garment bags.
As to the yearly plan, after the above mentioned, there are things I have to finish/do which will account for fabric that is not listed.