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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,742,544 | 66,616 | 236,961 |
| 2006 | $2,441,459 | 90,099 | 128,850 |
| 2007 | $2,417,645 | 82,288 | 104,381 |
| 2008 | $1,888,869 | 43,426 | 73,882 |
| 2009 | $1,195,074 | 12,282 | 65,446 |
| 2010 | $8,362,785 | 261,314 | 292,363 |
| 2011 | $5,842,343 | 159,120 | 176,379 |
Note: Quantity represents Number of pairs
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