12.6 books per month during my adult life; 16.1 per month for the past year. This counts single codices (so a bound 30-page novella and a 1000-page omnibus count the same), ebooks, and collected comic editions, but not audiobooks or individual comic issues.
I take public transportation to work, so I usually get about 90 minutes of pleasure reading per day. Additionally, I always read a comic book with breakfast, and I usually read in bed. And then wherever else I can squeeze in reading.
I'm an English professor, so I also read a lot for work, for either teaching or research. Semesters where I teach a new literature class usually inflate my numbers. (This semester, for example, I'm teaching eleven books in my YA lit course.)
Across my adult life, 12.4% of my books read have been Star Trek ones. Over the past twelve months, only 2.8%. I sort of fell behind on Star Trek fiction after Destiny. (I blame grad school.)