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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $790,721 | 53,606 | 100,348 |
| 2006 | $1,101,069 | 74,645 | 139,929 |
| 2007 | $1,232,821 | 93,111 | 163,212 |
| 2008 | $1,258,900 | 93,216 | 104,668 |
| 2009 | $1,913,784 | 118,698 | 196,239 |
| 2010 | $2,299,104 | 159,463 | 730,711 |
| 2011 | $2,898,135 | 213,521 | 718,443 |
Note: Quantity represents Number of pairs
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