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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tubes, pipes & hollow profiles of cast iron | $2,484,745 | $4,635,545 | $12,969,587 | $16,220,381 | $27,434,467 | $4,830,566 | $13,183,463 |
| Total | $2,484,745 | $4,635,545 | $12,969,587 | $16,220,381 | $27,434,467 | $4,830,566 | $13,183,463 |
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