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| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $974,345 | 31,017 | 51,506 |
| 2007 | $2,271,679 | 83,977 | 98,917 |
| 2008 | $4,132,964 | 56,590 | 69,105 |
| 2009 | $1,758,106 | 32,248 | 60,956 |
| 2010 | $1,499,352 | 24,340 | 55,325 |
| 2011 | $2,009,875 | 27,357 | 43,021 |
Note: Quantity represents Number of pairs
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