How many fiction titles are published each year by commercial houses, or respected small presses - titles that Miss Snark would regard as a professional credit? How many of those sell over a thousand copies?
I'm not sure. The Book Industry Study Group, from whence comes all my stats these days, could probably tell us if you wanted to dig deep on their website.
The 195,000 book number is actually ISBNs. That includes calendars, all versions of a single title (hc, tp, mmpbk, movie tie in edition etc). It includes everything published by all those vanity houses like AuthorHouse and iUniverse. Even if you figure there are 100,000 new titles published every year, it's still a lot particularly given fewer people are reading for pleasure and many of those of us who do are reading less.