First quarter   12 months Jan-Dec
SEK M 2012 2011 Change, % rolling values 2011
Trucks 3,521 4,273 (18) 17,475 18,227
Construction Equipment 2,131 1,755 21 7,188 6,812
Buses 62 303 (80) 873 1,114
Volvo Penta 112 177 (37) 760 825
Volvo Aero 235 35 571 560 360
Group functions and other (157) (207) (1,358) (1,408)
Industrial operations 5,906 6,335 (7) 25,501 25,930
           
Customer Finance 333 187 78 1,115 969
Volvo Group 6,239 6,522 (4) 26,616 26,899