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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,120,907 | 190,197 | 62,467 |
| 2006 | $7,782,198 | 268,548 | 58,436 |
| 2007 | $8,474,706 | 260,227 | 57,435 |
| 2008 | $10,176,092 | 41,889 | 60,396 |
| 2009 | $11,003,791 | 291,871 | 65,901 |
| 2010 | $11,261,113 | 85,050 | 80,241 |
| 2011 | $12,518,842 | 246,108 | 94,848 |
Note: Quantity represents Number of pairs
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