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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $93,970,099 | 4,130,992 | 9,442,775 |
| 2006 | $92,309,473 | 2,763,449 | 16,545,428 |
| 2007 | $159,332,391 | 5,231,798 | 11,544,263 |
| 2008 | $197,796,993 | 8,397,458 | 15,919,019 |
| 2009 | $179,841,472 | 7,819,455 | 15,732,077 |
| 2010 | $184,769,687 | 12,713,039 | 16,260,512 |
Note: Quantity represents Number of pairs
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