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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,496,630 | 102,701 | 121,381 |
| 2006 | $1,600,377 | 236,593 | 46,306 |
| 2007 | $1,268,949 | 188,260 | 140,323 |
| 2008 | $1,144,225 | 95,076 | 157,694 |
| 2009 | $730,411 | 51,960 | 30,190 |
| 2010 | $645,218 | 50,878 | 24,470 |
| 2011 | $644,590 | 50,910 | 31,447 |
Note: Quantity represents Number of pairs
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