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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tubes, pipes & hollow profiles of cast iron | $2,992,157 | $7,969,772 | $4,902,658 | $11,023,068 | $2,343,726 | $4,287,827 | $4,330,955 |
| Total | $2,992,157 | $7,969,772 | $4,902,658 | $11,023,068 | $2,343,726 | $4,287,827 | $4,330,955 |
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