Our usage varies between 10kwh and 13kwh per days. For a family of five, not including hot water which adds another 4-6kwh depending on season. The higher end of usage is when we've been using the aircon, only for half a dozen days per season and the dryer gets a bit of a run in winter. All energy efficient lighting, one fridge, but TVs etc all run on standby all the time and there is plenty of washing and dishwashing, averaging one of each per day.
I don't know how others end up with such high bills, except air cond and pools.