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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Rail locomotives powered from an ext. source of electricity | $11,573 | $17,014 | $5,802 | $103,570 | $57,054 | $19,162 | $42 |
| Rail locomotives powered by elec. accumulators | | | $5,929 | $16,535 | $14,795 | $2,526 | $1,686 |
| Total | $11,573 | $17,014 | $11,731 | $120,105 | $71,849 | $21,688 | $1,728 |
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