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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $469,188 | 104,464 | 41,110 |
| 2006 | $1,017,534 | 156,379 | 89,156 |
| 2007 | $1,179,910 | 135,447 | 167,437 |
| 2008 | $2,258,728 | 158,762 | 166,237 |
| 2009 | $3,562,247 | 169,699 | 233,164 |
| 2010 | $2,842,122 | 113,096 | 185,968 |
| 2011 | $2,568,676 | 134,244 | 163,513 |
Note: Quantity represents Number of pairs
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