How about 18 years ago when there was a shortage of gypsum and therefore sheetrock? price jumped from 4 bucks a sheet to over 10 bucks almost overnight
I pay $49-49 for 3/4" cabinet grade birch ply wholesale, and Home depot has it on the shelf for 40 bucks. I pay the extra because it comes to my door and I don't have to make a trip and pick thru a pile. Birch ply and every other plywood has increased just like everything else. Cherry is about 100 a sheet for A-1 plain sliced

And people wonder why cabinets cost so much
I bet 3/4" fir cdx is close to 40 bucks over there since it has to come by ferry.