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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,753,843 | 92,027 | 325,937 |
| 2006 | $1,921,667 | 69,020 | 191,926 |
| 2007 | $2,780,714 | 82,088 | 215,904 |
| 2008 | $2,873,395 | 77,009 | 140,160 |
| 2009 | $3,085,320 | 87,400 | 147,893 |
| 2010 | $2,910,353 | 86,808 | 227,011 |
| 2011 | $3,399,718 | 96,640 | 175,525 |
Note: Quantity represents Number of pairs
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