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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,329,677 | 162,103 | 201,517 |
| 2006 | $3,173,639 | 120,950 | 111,417 |
| 2007 | $4,193,723 | 146,031 | 161,874 |
| 2008 | $5,167,606 | 112,786 | 132,974 |
| 2009 | $2,584,560 | 52,732 | 63,208 |
| 2010 | $2,627,225 | 77,967 | 88,199 |
| 2011 | $2,794,850 | 87,889 | 97,747 |
Note: Quantity represents Number of pairs
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