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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,256,918 | 930,857 | 261,977 |
| 2006 | $1,610,318 | 544,266 | 186,922 |
| 2007 | $1,859,677 | 572,427 | 248,704 |
| 2008 | $2,065,111 | 518,149 | 224,168 |
| 2009 | $2,017,535 | 498,582 | 199,509 |
| 2010 | $2,589,317 | 568,967 | 247,337 |
| 2011 | $2,304,180 | 428,620 | 233,109 |
Note: Quantity represents Number of pairs
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