I'll be lucky to clear 5 a month, so that's about 60. There for a while I was keeping tabs on how long it took me to read a book, what the book was about, the writing style, my thoughts, etc., though the main point was to gauge how long it took me to read them and why. I put it down about 8 months into it, but I've picked up the practice again.
One thing that's kinda killing my reading time lately is I've been playing too much PSP in my spare time, I had to put a limit that I wouldn't play it after 10:00pm so i could get back into reading (not to mention it was making my brain too active and I wouldn't want to go to sleep). Chalk one up to game systems for decreasing the amount of reading I've been doing, yikes!
