So, how may encounters do you have per day on average (90% of the time)?
If you have 2, 2, 3, 4, 1, 2, 3 encounters, answer 2-3.
If you have 2, 2, 2, 2, 999, 2, 2, 2, 2, 2, 2, 2, 2, 2, answer 2-3. (you went dungeon delving once but most of the time just have 2 encounters per day).
If you...