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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,169,306 | 45,445 | 208,656 |
| 2006 | $1,577,302 | 55,001 | 100,854 |
| 2007 | $2,130,020 | 69,412 | 79,232 |
| 2008 | $1,808,352 | 56,259 | 103,436 |
| 2009 | $1,095,821 | 48,688 | 107,253 |
| 2010 | $1,455,900 | 52,589 | 130,211 |
| 2011 | $1,631,604 | 48,215 | 136,221 |
Note: Quantity represents Number of pairs
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