Probably thousands.
When I was around 11, I lived three blocks from the city library. There were times when I had over twenty books out at once. I was reading the full newspaper at 8 (Asked my mom what a "g-string" was after reading it in a column. 😀), & at 12 or 13 I was reading Clancy, Chrichton, Grisham, & Stephen Coonts.
[EDIT]I can't spell today either. Or maybe I just can't type...[/EDIT]
Viper GTS