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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $22,315,434 | 687,701 | 3,196,002 |
| 2006 | $17,564,185 | 707,892 | 2,515,532 |
| 2007 | $28,382,010 | 964,497 | 4,295,166 |
| 2008 | $38,550,993 | 1,348,216 | 4,036,016 |
| 2009 | $35,349,327 | 1,291,097 | 3,278,550 |
| 2010 | $55,209,026 | 1,858,763 | 4,295,735 |
| 2011 | $72,576,376 | 2,144,008 | 7,232,206 |
Note: Quantity represents Number of pairs
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