I only managed to knit one thing this month, but it was at least of a reasonable size being a long sweater (with pockets).
It used up 1,610 yards of my handspun yarn.
Total monthly yarn out: 1,610 yards, 332g
Total monthly yarn in: 0 yards, 0g
Net monthly yarn decrease: 1,610 yards, 332g
Monthly fibre stash reduction: 0g.
Total yarn out ytd: 15,775.8 yards, 5,176g
Total yarn in ytd: 13,750 yards, 3,180g
Net yarn decrease ytd: 2,025.8 yards, 1,996g
Fibre stash reduction ytd: 3,050g.