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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,181,727 | 472,464 | 239,731 |
| 2006 | $5,557,519 | 372,691 | 215,524 |
| 2007 | $9,154,026 | 400,659 | 332,164 |
| 2008 | $12,538,562 | 514,393 | 417,622 |
| 2009 | $5,066,049 | 229,966 | 147,632 |
| 2010 | $2,966,301 | 122,090 | 91,145 |
| 2011 | $1,978,016 | 122,187 | 60,867 |
Note: Quantity represents Number of pairs
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