Well, I managed to do a productivity report for the first 5 months of 2018. I'm not counting any non-fiction or literary criticism, of which there was a fair bit. Here are just normal books (including some C.S. Lewis) that I've read:
N.K. Jemisin, The Obelisk Gate, 350 pg.
N.K. Jemisin, The Stone Sky, 350pg.
Brandon Sanderson, Mistborn 600 pg.
Brandon Sanderson, The Well of Ascension, 800 pg.
Brandon Sanderson, The Hero of Ages, 700 pg.
Blake Charlton, Spellwright, 300 pg.
David Gemmel, Legend, 300 pg.
Paul Kierney, The Ten Thousand, 350 pg.
Paul Edwin Zimmer, The Dark Border (2 vols): 750 pg.
John Bellairs, The Face in the Frost, 150 pg.
Paul Kearney, The Ten Thousand, 350 pg.
Lois McMaster Bujold, Paladin of Souls, 450 pg.
Lovecraft, H.P. The Call of Cthulu and Other Weird Stories, 400 pg.
Walton, Evangeline. Above Keri-Is and Other Stories, 150 pg.
Laura E. Goodin, Mud and Glass, 350 pg.
L. Frank Baum, The Lost Princess of Oz, 300pg.
L. Frank Baum, The Tin Woodman of Oz, 250 pg.
L. Frank Baum, The Patchwork Girl of Oz, 200 pg.
L. Frank Baum, Tik-Tok of Oz, 200 pg.
L. Frank Baum, Rinkitink of Oz, 200 pg.
Roald Dahl, Charlie and the Chocolate Factory, 150 pg
Roald Dahl, Twits, 100 pg.
Jonathan Strahan, Lou Anders, editors. Swords & Dark Magic: The New Sword and Sorcery, 500 pg.
C. S. Lewis, The Abolition of Man, 100 pg.
C. S. Lewis, The Screwtape Letters, 200 pg.
C. S. Lewis, Mere Christianity, 200 pg.
All in all: 8,750 pages of fiction read. So, about 60 pages per day over the course of 150 days from January through may. The bulk of this has been read during the first three months of that period -- the latter period saw a lot of time devoted to writing and reading literary criticism, which hasn't made this list.