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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,803,527 | 321,139 | 381,718 |
| 2006 | $7,360,851 | 283,507 | 417,066 |
| 2007 | $9,527,698 | 196,079 | 275,903 |
| 2008 | $11,903,767 | 202,881 | 332,338 |
| 2009 | $10,105,219 | 220,228 | 336,766 |
| 2010 | $9,767,345 | 382,440 | 373,075 |
| 2011 | $12,915,856 | 244,779 | 377,642 |
Note: Quantity represents Number of pairs
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