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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,709,452 | 127,149 | 124,472 |
| 2006 | $1,311,071 | 133,358 | 141,912 |
| 2007 | $2,254,487 | 161,224 | 159,234 |
| 2008 | $1,569,452 | 81,683 | 80,270 |
| 2009 | $1,817,033 | 123,000 | 124,954 |
| 2010 | $1,453,900 | 106,514 | 96,630 |
| 2011 | $1,640,622 | 102,207 | 88,073 |
Note: Quantity represents Number of pairs
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