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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $519,297 | 164,957 | 587,363 |
| 2006 | $823,112 | 62,173 | 102,614 |
| 2007 | $267,586 | 9,343 | 21,683 |
| 2008 | $389,394 | 35,596 | 93,147 |
| 2009 | $365,276 | 125,054 | 265,098 |
| 2010 | $803,188 | 393,851 | 741,152 |
| 2011 | $582,731 | 121,828 | 247,645 |
Note: Quantity represents Number of pairs
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