Sales by major product grouping were as follows:
| 2013 | 2012 | 2011 | ||||||||||
|
Sales: |
||||||||||||
|
Alumina |
$ | 3,151 | $ | 2,962 | $ | 3,350 | ||||||
|
Primary aluminum |
6,194 | 7,121 | 7,907 | |||||||||
|
Flat-rolled aluminum |
7,106 | 7,378 | 7,642 | |||||||||
|
Investment castings |
1,807 | 1,747 | 1,700 | |||||||||
|
Fastening systems |
1,505 | 1,414 | 1,313 | |||||||||
|
Architectural aluminum systems |
977 | 970 | 973 | |||||||||
|
Aluminum wheels |
702 | 692 | 656 | |||||||||
|
Other extruded aluminum and forged products |
1,015 | 955 | 1,010 | |||||||||
|
Other |
575 | 461 | 400 | |||||||||
| $ | 23,032 | $ | 23,700 | $ | 24,951 | |||||||