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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tubes, pipes & hollow profiles of cast iron | $12,162,810 | $9,041,642 | $7,027,322 | $13,440,939 | $7,075,510 | $5,640,807 | $2,304,565 |
| Total | $12,162,810 | $9,041,642 | $7,027,322 | $13,440,939 | $7,075,510 | $5,640,807 | $2,304,565 |
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