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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $82,075,858 | 599,218,816 | 599,218,816 |
| 2006 | $104,486,852 | 1,956,808,360 | 1,956,808,360 |
| 2007 | $81,035,528 | 1,492,060,259 | 1,492,060,259 |
| 2008 | $10,232,185 | 38,747,786 | 38,747,786 |
| 2009 | $11,877,844 | 29,581,382 | 29,581,382 |
| 2010 | $8,286,892 | 25,237,685 | 25,237,685 |
| 2011 | $5,230,930 | 13,766,251 | 13,766,251 |
Note: Quantity represents Weight in kilograms
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