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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,815,443 | 33,909 | 34,370 |
| 2006 | $1,564,784 | 25,528 | 30,803 |
| 2007 | $2,957,086 | 38,558 | 39,364 |
| 2008 | $3,415,953 | 35,461 | 39,930 |
| 2009 | $1,789,556 | 23,123 | 22,012 |
| 2010 | $1,734,429 | 21,150 | 19,121 |
| 2011 | $1,855,156 | 18,792 | 20,907 |
Note: Quantity represents Number of pairs
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