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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,745,777 | 319,128 | 605,004 |
| 2006 | $4,525,182 | 326,062 | 900,186 |
| 2007 | $7,415,910 | 1,751,303 | 2,906,341 |
| 2008 | $3,895,582 | 852,025 | 808,333 |
| 2009 | $3,445,874 | 177,708 | 407,462 |
| 2010 | $5,057,273 | 344,218 | 834,975 |
| 2011 | $9,211,613 | 284,742 | 1,188,050 |
Note: Quantity represents Number of pairs
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