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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $45,073,061 | 2,436,924 | 1,732,989 |
| 2006 | $49,670,975 | 2,689,497 | 1,985,731 |
| 2007 | $64,497,576 | 4,149,757 | 2,285,575 |
| 2008 | $77,494,828 | 2,692,898 | 2,309,043 |
| 2009 | $65,113,454 | 2,264,323 | 2,121,141 |
| 2010 | $77,568,531 | 2,201,769 | 2,446,779 |
| 2011 | $98,142,618 | 2,450,839 | 5,694,371 |
Note: Quantity represents Number of pairs
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