Key ratios in brief, group

	2015	2014	2013	2012	2011
Net sales, SEK m	4 200	3 870	3 349	3 268	3 399
Gross profit, SEK m	1 241	1 134	983	946	1 025
Operating income*, SEK m	528	452	369	355	403
EBITDA*, SEK m	656	572	473	454	496
Interest-bearing net debt, SEK m	584	888	491	638	745
Number of employees	2 082	2 092	1 902	1 875	1 888
Gross margin*	29.6 %	29.3 %	29.4 %	29.0 %	30.2 %
Operating margin*	12.6 %	11.7 %	11.0 %	10.9 %	11.9 %
EBITDA margin*	15.6 %	14.8 %	14.1 %	13.9 %	14.6 %

* Calculated based on underlying operating income