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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,245,294 | 266,979 | 1,072,250 |
| 2006 | $3,902,333 | 307,224 | 1,443,872 |
| 2007 | $6,084,180 | 498,903 | 2,345,808 |
| 2008 | $8,304,401 | 551,077 | 2,500,432 |
| 2009 | $5,012,372 | 286,271 | 1,482,500 |
| 2010 | $10,605,854 | 591,608 | 3,009,483 |
| 2011 | $17,410,793 | 965,441 | 1,453,608 |
Note: Quantity represents Number of pairs
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