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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,721,074 | 1,140,917 | 791,278 |
| 2006 | $7,993,858 | 1,069,940 | 794,392 |
| 2007 | $6,788,766 | 821,194 | 608,190 |
| 2008 | $8,572,447 | 770,852 | 597,702 |
| 2009 | $3,949,737 | 446,041 | 424,669 |
| 2010 | $3,096,303 | 769,948 | 686,495 |
| 2011 | $3,418,590 | 475,993 | 683,843 |
Note: Quantity represents Number of pairs
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