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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,866,777 | 1,972,222 | 1,781,435 |
| 2006 | $12,574,232 | 2,139,014 | 1,887,638 |
| 2007 | $15,021,767 | 2,651,629 | 1,655,146 |
| 2008 | $18,088,085 | 3,863,917 | 1,725,657 |
| 2009 | $18,403,369 | 7,720,084 | 1,535,361 |
| 2010 | $20,819,419 | 5,836,212 | 0 |
| 2011 | $24,396,491 | 4,768,664 | 0 |
Note: Quantity represents Number of pairs
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