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.