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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $582,074 | 90,569 | 147,935 |
| 2006 | $584,673 | 102,085 | 118,187 |
| 2007 | $943,254 | 191,403 | 157,808 |
| 2008 | $1,138,358 | 112,416 | 157,636 |
| 2009 | $686,632 | 136,625 | 269,742 |
| 2010 | $808,563 | 113,828 | 146,568 |
| 2011 | $975,625 | 96,570 | 127,016 |
Note: Quantity represents Number of pairs
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