|
| Commodity | 2007 | 2008 | 2009 | 2010 | 2011 |
| Carbon electrodes, of a kind used for furnaces | | $2,020 | | | |
| Carbon electrodes, other than of a kind used for furnaces | | | $9,992 | | |
| Carbon brushes | | $12,669 | $3,846 | $6,191 | $6,803 |
| Lamp carbons, battery carbons & oth. arts. of graphite/oth. carbon, with/wi ... | $27,510 | | | | |
| Total | $27,510 | $14,689 | $13,838 | $6,191 | $6,803 |
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