Here is some analysis of your activites! Within each type of activity you will find various histograms (frequency plots) showing the number of times that you've done that type of activity at certain speeds, distances, etc.
This is all-time, Berend. I could give you the option of viewing year-by-year; will add that to the list. Basic stats (like std deviation and mean) should be no problem too.
There might also be some other charts on other pages where excluding commutes might be useful