First quarter   12 months Jan-Dec
SEK M 2011 2010 Change, % rolling values 2010
Trucks 4,286 1,444           197 12,954 10,112
Construction Equipment 1,708 1,006             70 6,882 6,180
Buses 281 145             94 916 780
Volvo Penta 164 121             36 621 578
Volvo Aero 28 152 (82) 162 286
Group functions and other (123) (83) 48 (142) (102)
Industrial operations 6,343 2,785           128 21,393 17,834
           
Customer Finance 179 14        1,179 332 167
Volvo Group 6,522 2,799 133 21,723 18,000