Note 11 Operating costs divided by type

Group, MSEK 2017 2016
Production costs 1)  35,290  32,754
Personnel expenses  10,673  9,643
Depreciation  904  784
Write-downs  53  78
Other operating costs  1,045  1,117
Total  47,965  44,376

1) Included in production costs are purchased material, sub-contractors, expenses for property projects and other production costs.