In Poland we publish 9000 new books each year, of course initial runs are like 500-1k copies. Not sure how it breaks down in detail on types like science publications and else but average person reads 1 book a year, avid readers read 7 and above but they are 1% of the population.

Just some stats as I watched discussion on this topic. I think the question was rhetorical but feels like a nice thing to add.