I feel like I'm reading more and more the past

In any given year, something like half the books I read are contemporary (i.e. written sometime after 1990). Fifteen percent are from the mid 20 century (i.e. after WW). Fifteen percent are from the early 20th century. And fifteen percent are from the nineteenth century. That leaves a remainder of five percent. Of that, one percent are from the 18th cen…