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| Commodity | 2005 | 2006 | 2008 | 2009 | 2011 |
| Catalysts in the form of wire cloth/grill, of platinum | | | $4,631 | $446,542 | $706,824 |
| Articles of precious metal/metal clad with precious metal, n.e.s. in Ch.71 | $60,176 | $29,583 | $11,693,990 | $1,855,546 | $11,868 |
| Total | $60,176 | $29,583 | $11,698,621 | $2,302,088 | $718,692 |
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