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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,464,164 | 216,367 | 548,323 |
| 2006 | $890,526 | 45,082 | 0 |
| 2007 | $509,544 | 37,452 | 56,192 |
| 2008 | $845,562 | 71,847 | 50,426 |
| 2009 | $292,252 | 19,665 | 18,869 |
| 2010 | $607,131 | 86,179 | 35,577 |
| 2011 | $272,882 | 47,580 | 17,660 |
Note: Quantity represents Number of pairs
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