I found the official numbers of the national budget institute (NIBUD). You can see that the average consumption is quite a bit lower than your expenditure.

Mechanical translation provided by Google, just scroll down to "Electricity".

1 person household: 2220 kWh
2 person household: 3095 kWh
3 person household: 3875 kWh

Average over all households: 3230 kWh