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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $812,959,000 | 558,091,000 | 558,091,000 |
| 2006 | $916,993,000 | 549,545,100 | 549,545,100 |
| 2007 | $1,324,687,000 | 688,755,800 | 688,755,800 |
| 2008 | $1,629,762,000 | 717,696,600 | 717,696,600 |
| 2009 | $789,353,000 | 391,439,900 | 391,439,900 |
| 2010 | $948,701,300 | 669,258,700 | 669,258,700 |
| 2011 | $1,172,137,722 | 610,326,714 | 610,326,714 |
Note: Quantity represents Weight in kilograms
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