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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,516,000 | 245,273 | 752,527 |
| 2006 | $1,798,000 | 97,653 | 299,611 |
| 2007 | $2,034,000 | 130,799 | 259,251 |
| 2008 | $1,311,000 | 45,621 | 0 |
| 2009 | $2,801,000 | 96,701 | 166,394 |
| 2010 | $5,553,000 | 233,652 | 321,864 |
| 2011 | $10,690,000 | 409,698 | 620,249 |
Note: Quantity represents Number of pairs
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