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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,601,000 | 201,481 | 90,890 |
| 2006 | $1,805,000 | 251,249 | 102,471 |
| 2007 | $1,951,000 | 244,251 | 91,592 |
| 2008 | $2,767,000 | 264,150 | 117,288 |
| 2009 | $2,855,000 | 290,919 | 116,381 |
| 2010 | $4,665,384 | 430,767 | 192,336 |
| 2011 | $5,297,969 | 440,534 | 290,652 |
Note: Quantity represents Number of pairs
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