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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $338,098,392 | 329,982,379 | 329,982,379 |
| 2006 | $410,895,067 | 380,503,717 | 380,503,717 |
| 2007 | $381,271,859 | 377,864,109 | 377,864,109 |
| 2008 | $471,790,780 | 430,881,820 | 430,881,820 |
| 2009 | $285,264,608 | 365,905,490 | 365,905,490 |
| 2010 | $378,738,468 | 432,560,948 | 432,560,948 |
| 2011 | $399,762,936 | 415,421,244 | 415,421,244 |
Note: Quantity represents Weight in kilograms
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