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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,073,896 | 37,166 | 12,242 |
| 2006 | $1,263,589 | 43,731 | 15,007 |
| 2007 | $1,696,297 | 52,041 | 19,030 |
| 2008 | $2,267,973 | 62,994 | 23,191 |
| 2009 | $1,247,660 | 32,663 | 14,738 |
| 2010 | $1,086,239 | 28,922 | 60,785 |
| 2011 | $1,769,688 | 47,154 | 47,713 |
Note: Quantity represents Number of pairs
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