After Michael accuses Creed of causing the watermark disaster, he tells us that one per week he is meant to spend 4 hours conducting a quality spot check at the paper mill. He then says "[...] the one year I blow it off, this happens."
While on the phone with Pam just after the work day ends, Jim asks her how many words per minute the average person types. Pam replies that she types 90 WPM, and guesses the average person types 70 WPM. Jim replies that he types 65 WPM, which Pam calls "respectable". The average person types between 38 and 40 WPM, what translates into between 190 and 200 characters per minute (CPM).