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| Commodity | 2006 | 2008 | 2009 | 2010 | 2011 |
| Rail locomotives powered from an ext. source of electricity | | $101,435,366 | $171,343,857 | $132,141,178 | $51,394,567 |
| Rail locomotives powered by elec. accumulators | $39,392 | $106,200 | $166,680 | $347,122 | $442,449 |
| Total | $39,392 | $101,541,566 | $171,510,537 | $132,488,300 | $51,837,016 |
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