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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,014,820 | 4,117 | 4,117 |
| 2006 | $7,127,322 | 24,094 | 24,094 |
| 2007 | $2,653,351 | 14,504 | 14,504 |
| 2008 | $14,596,558 | 27,174 | 27,174 |
| 2009 | $767,507,986 | 12,978 | 12,978 |
| 2010 | $1,744,733,291 | 41,125 | 41,125 |
| 2011 | $4,352,050,333 | 9,035 | 9,035 |
Note: Quantity represents Weight in kilograms
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