We put a new GE 18 cubic foot refrigerator, a top freezer model, no icemaker, in service on 3/29/2011, so it's been in operation for just over a year. We'd searched for the lowest energy rating product, which was an interesting process in itself. It is rated at 335 kWh/year.
For the first complete year, the consumption was 295 kWh. I'm sure that some of the reason for being under the rating is that our household is only two people. A family would have more door openings, and would also have more food throughput. So perhaps the Energyguide rating is quite close.
I've mentioned before that the refrigerator and the freezer work harder in the warm seasons, as the case gains more heat from the surroundings, and the refrigeration system works harder to reject heat to the warmer surroundings also. Here's what about 13 months of daily data looks like:
Spikes are typically big cooking events, with lots of door openings, and some warm cooked food going into the fridge.