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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,154 | 4,704 | 4,704 |
| 2006 | $11,525 | 4,044 | 4,044 |
| 2007 | $671 | 220 | 220 |
| 2008 | $1,128 | 340 | 340 |
| 2009 | $43,974 | 10,380 | 10,380 |
| 2010 | $77,745 | 21,155 | 21,155 |
| 2011 | $53,531 | 12,053 | 12,053 |
Note: Quantity represents Weight in kilograms
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