If you take 5 books per 1000 people over 20 years, that's 100 books per 1000 people. Of course, many of the same writers are on their 2nd+ novels so 1 in 10 see

If you take 5 books per 1000 people over 20 years, that's 100 books per 1000 people. Of course, many of the same writers are on their 2nd+ novels so 1 in 10 seems unlikely, but I could see 1 in 20 people having a book published in their lifetime if everyone keeps publishing at the same rate they did in 2007