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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tubes, pipes & hollow profiles of cast iron | $2,637,437 | $7,241,796 | $7,484,406 | $2,751,693 | $12,974,266 | $13,035,450 | $31,690,335 |
| Total | $2,637,437 | $7,241,796 | $7,484,406 | $2,751,693 | $12,974,266 | $13,035,450 | $31,690,335 |
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