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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,925,122 | 551,149 | 653,797 |
| 2006 | $13,215,568 | 457,374 | 378,952 |
| 2007 | $8,697,387 | 266,831 | 261,350 |
| 2008 | $9,450,839 | 262,503 | 233,663 |
| 2009 | $6,974,504 | 182,590 | 183,369 |
| 2010 | $3,604,475 | 95,973 | 76,778 |
| 2011 | $4,214,453 | 112,296 | 184,994 |
Note: Quantity represents Number of pairs
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