60-83 a day.
I've got a 3k square ft 5 bedroom dome house... so when I turn on the heater in the winter or the window-units after it rains in the summer, it's pricey. I also have 2 people per bedroom.
Also: I've got a computer for every bedroom + another for the living room and another for the TV room.
52inch in the TV room that I post/work/watch TV on and then two other HDs a 32 and a 42 in two bedrooms.
I also run a humidifier, all the time, in my room and from march to November the swamp cooler is usually going non-stop.
Also I don't turn off the lights.
So, OP, per-person you seem to be right-on with what I use (if you are, as I would expect, forever alone)