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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,315,658 | 129,240 | 294,887 |
| 2006 | $759,481 | 47,736 | 165,426 |
| 2007 | $2,771,568 | 164,879 | 590,082 |
| 2008 | $3,042,035 | 147,155 | 657,310 |
| 2009 | $4,937,629 | 203,475 | 1,208,689 |
| 2010 | $2,721,271 | 118,922 | 545,987 |
| 2011 | $2,369,103 | 119,803 | 236,080 |
Note: Quantity represents Number of pairs
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