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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $620,278 | 37,242 | 39,170 |
| 2006 | $1,089,735 | 34,438 | 36,668 |
| 2007 | $1,870,396 | 46,928 | 59,776 |
| 2008 | $2,528,167 | 38,195 | 50,056 |
| 2009 | $904,216 | 14,579 | 17,442 |
| 2010 | $1,381,669 | 18,163 | 28,102 |
| 2011 | $1,467,229 | 15,927 | 19,116 |
Note: Quantity represents Number of pairs
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