Pelleted Food - Well, I use up about 2, max 3 25kg bags a year, with an average headcount somewhere about 15 (min 7, max this year 28), give or take. 25kg cost 21.5€, so that's about 65€ per year.
Timothy Hay - There is no such thing as Timothy or other extensivly farmed single species hay, it's just what grows on the meadows. 3.5€ per bale, 12 bales per year. That's 42€ That's what fits on my trailer, I get it from a local farmer.
I feed fresh forage whenever available, they eat not much hay then. And I make some hay myself, about half the amount I buy.
Treats - The pellets are used as treats, only other thing I buy is oatmeal if a supplement is needed. Apples are for free, as is the Topinambur I grow around the hutches for shade and for harvesting the tubers in winter.
Toys - Free. They can dig and graze and gnaw as much as they want when out, they get tree branches to gnaw on when in the hutches or house.
Vet Emergency Fund - On average, I see the vet 3 times a year, got more since Herr Hase has Athrosis, yearly costs including medication about 200€ now.
Other (litter, new accessories, cleaning supplies, etc.) - I use up about 3-4 15kg bags of wood stove pellets, about 3.20€ each, so another 12-13€. Since my 2 house rabbits spend most of the day outdoors I don't need much of that.
Selling off excess kits pretty much covered everything this year, except the vet costs, that's only because it's 2020 and nothing went according to plan, I had way too many unplanned litters, normally I aim to not have any kits to sell, it simply is not worth the work involved...