Net assets and working capital

SEKm Dec. 31,
2012		 % of
annualized
net sales		 Dec. 31,
2011		 % of
annualized
net sales
Inventories 12,963 11.3 11,957 10.5
Trade receivables 18,288 15.9 19,226 17.0
Accounts payable –20,590 –17.9 –18,490 –16.3
Provisions –8,433   –9,776  
Prepaid and accrued income and expenses –7,467   –6,598  
Taxes and other assets and liabilities –1,647   –1,499  
Working capital –6,886 –6.0 –5,180 –4.6
Property, plant and equipment 16,693   15,613  
Goodwill 5,541   6,008  
Other non-current assets 8,003   8,717  
Deferred tax assets and liabilities 2,158   1,853  
Net assets 25,509 22.2 27,011 23.8
Average net assets 26,543 24.1 22,091 21.7
Return on net assets, % 15.6   13.7  
Return on net assets, excluding items affecting comparability, % 18.8   13.5