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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $604,127 | 59,471 | 48,460 |
| 2006 | $5,551,789 | 616,347 | 445,335 |
| 2007 | $14,049,356 | 1,169,068 | 709,509 |
| 2008 | $15,329,318 | 3,246,550 | 565,189 |
| 2009 | $14,248,483 | 1,092,094 | 469,710 |
| 2010 | $13,387,095 | 1,079,066 | 417,365 |
Note: Quantity represents Number of pairs
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