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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,268,680 | 53,764 | 124,454 |
| 2006 | $2,318,002 | 98,231 | 270,483 |
| 2007 | $1,850,217 | 69,358 | 175,187 |
| 2008 | $2,113,838 | 77,298 | 186,214 |
| 2009 | $1,973,187 | 59,470 | 182,788 |
| 2010 | $2,308,878 | 73,395 | 213,625 |
| 2011 | $1,250,419 | 40,897 | 108,636 |
Note: Quantity represents Number of pairs
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