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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,041,663 | 223,163 | 324,115 |
| 2006 | $2,596,247 | 128,953 | 198,430 |
| 2007 | $3,260,548 | 94,653 | 123,423 |
| 2008 | $3,813,972 | 87,111 | 167,919 |
| 2009 | $2,345,503 | 118,197 | 161,084 |
| 2010 | $3,251,034 | 181,404 | 261,745 |
| 2011 | $2,108,541 | 168,197 | 153,601 |
Note: Quantity represents Number of pairs
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