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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $331,124 | 119,033 | 142,902 |
| 2006 | $1,151,817 | 222,121 | 887,360 |
| 2007 | $4,739,601 | 1,457,042 | 2,021,979 |
| 2008 | $3,769,911 | 1,778,875 | 1,267,023 |
| 2009 | $6,847,478 | 3,405,747 | 1,922,767 |
| 2010 | $6,046,663 | 2,490,744 | 1,644,790 |
Note: Quantity represents Number of pairs
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