I know that such stats not straightforward to obtain, but I'd be interested in seeing numbers on the "death rate" of durable goods like bicycles and guitars in

I know that such stats not straightforward to obtain, but I'd be interested in seeing numbers on the "death rate" of durable goods like bicycles and guitars in addition to the "birth rate". I just have no idea if the population of such things (per capita) is stable, or growing, or shrinking.