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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $20,253,651 | 3,672,226 | 2,937,800 |
| 2006 | $24,801,463 | 4,258,006 | 3,183,359 |
| 2007 | $21,815,176 | 4,799,875 | 3,883,064 |
| 2008 | $55,474,824 | 5,291,929 | 4,058,843 |
| 2009 | $19,241,576 | 1,887,891 | 1,485,898 |
| 2010 | $43,440,493 | 4,232,277 | 3,377,598 |
| 2011 | $53,418,972 | 4,092,766 | 3,362,683 |
Note: Quantity represents Number of pairs
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