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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $233,765 | 18,921 | 44,521 |
| 2006 | $711,210 | 73,907 | 135,452 |
| 2007 | $744,649 | 105,544 | 150,816 |
| 2008 | $538,454 | 91,274 | 0 |
| 2009 | $343,009 | 84,589 | 0 |
| 2010 | $1,051,525 | 155,430 | 0 |
| 2011 | $1,058,866 | 108,349 | 0 |
Note: Quantity represents Number of pairs
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