What proportion of the books you own are unread?
I moved last summer and then I weeded a lot from my print book (and comics) collection. Most of them were books I’ve read but don’t intend to reread. So, I’d say I haven’t read about 80% of my print books. I’ve also bought as audiobooks some of the series I really like.
Like many others, I have a tendency to download free ebooks when they’re available so I think out of ebooks maybe even 90% are unread. However, I own only one audiobook which I haven’t listened yet. When I buy a new audiobook I almost always listen it immediately.