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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $145,341,000 | 186,111,600 | 186,111,600 |
| 2006 | $182,015,000 | 242,181,800 | 242,181,800 |
| 2007 | $806,512,000 | 1,097,498,453 | 1,097,498,453 |
| 2008 | $983,443,000 | 1,265,805,100 | 1,265,805,100 |
| 2009 | $789,585,000 | 1,104,709,500 | 1,104,709,500 |
| 2010 | $837,268,727 | 1,242,738,300 | 1,242,738,300 |
| 2011 | $831,784,917 | 1,105,136,330 | 1,105,136,330 |
Note: Quantity represents Weight in kilograms
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