On average, how much time per workday would you say that you spend on professional self-education -- keeping up and *learning* stuff, as opposed to *doing* stuff? If you do big educational conferences and such, try to average that time in. Only count time that has something to do with your career(s) -- that is, ways in which you make money or intend to -- but stuff that isn't directly related to your current job(s) is fair game. If you do it on weekends, average that into your work week. Yes, there is a lot of ambiguity here: interpret as you will, and comment below.
What fraction of that is directly related to your current job(s) (as opposed to more generally relevant to your career)?
How much of that is purely self-directed learning, and how much is in formal classes?