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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,811,869,000 | 784,893,600 | 784,893,600 |
| 2006 | $2,319,693,000 | 968,352,700 | 968,352,700 |
| 2007 | $2,745,063,000 | 955,088,100 | 955,088,100 |
| 2008 | $3,345,109,000 | 1,031,762,800 | 1,031,762,800 |
| 2009 | $2,505,628,000 | 829,853,031 | 829,853,031 |
| 2010 | $2,570,125,463 | 898,126,063 | 898,126,063 |
| 2011 | $2,963,929,092 | 986,738,728 | 986,738,728 |
Note: Quantity represents Weight in kilograms
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