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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $551,234,000 | 225,112,508 | 225,112,508 |
| 2006 | $392,874,000 | 155,120,500 | 155,120,500 |
| 2007 | $749,577,000 | 194,876,820 | 194,876,820 |
| 2008 | $647,674,000 | 183,783,900 | 183,783,900 |
| 2009 | $460,434,000 | 192,469,590 | 192,469,590 |
| 2010 | $620,992,889 | 222,053,174 | 222,053,174 |
| 2011 | $947,544,569 | 295,234,942 | 295,234,942 |
Note: Quantity represents Weight in kilograms
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