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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,087,132 | 160,701 | 115,077 |
| 2006 | $3,186,368 | 103,463 | 98,964 |
| 2007 | $5,424,667 | 180,951 | 102,404 |
| 2008 | $4,213,938 | 83,433 | 97,118 |
| 2009 | $1,895,901 | 33,973 | 40,438 |
| 2010 | $2,236,014 | 45,537 | 55,298 |
| 2011 | $2,898,535 | 38,509 | 49,143 |
Note: Quantity represents Number of pairs
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