2013, 2014 & 2015 were very productive years for me challenge-wise.
According to GR Statistics - which currently doesn't work and shoves Alice in your face, dare you click on the link (cause UPDATES for the good of the masses!) - sorry, got distracted and carried away by GRawsomeness which is GRAmazon.... forgive me.
Anyway, according to GR Statistics I read more pages this year than in 2013 or 2014 or 2015. Yet I could barely make it to 189 book count mark. In 2013 I read 237 books, 2014 - 236 and 2015 - 206.
This, I guess, sort of a rhetorical question, since I don't really expect an answer from BL and even less so from GR:
Should we have a choice of displaying our challenges in books and/or pages?
OK, maybe I do want to brag a little bit, but it really is interesting for me to compare how many books and pages and even chapters I read.