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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,709,688 | 2,550,256 | 707,016 |
| 2006 | $5,042,772 | 3,386,072 | 757,019 |
| 2007 | $6,572,266 | 4,803,797 | 724,153 |
| 2008 | $5,303,901 | 4,309,679 | 506,008 |
| 2009 | $4,927,474 | 3,753,451 | 411,091 |
| 2010 | $5,628,577 | 4,465,450 | 0 |
Note: Quantity represents Number of pairs
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