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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $325,769,257 | 6,474,788 | 6,474,788 |
| 2006 | $425,548,937 | 7,947,649 | 7,947,649 |
| 2007 | $481,841,099 | 9,608,911 | 9,608,911 |
| 2008 | $460,270,317 | 10,350,671 | 10,350,671 |
| 2009 | $302,125,559 | 6,924,821 | 6,924,821 |
| 2010 | $490,803,927 | 7,733,357 | 7,733,357 |
| 2011 | $522,431,074 | 12,326,212 | 12,326,212 |
Note: Quantity represents Weight in kilograms
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