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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $375,816,746 | 303,612,997 | 303,612,997 |
| 2006 | $376,189,176 | 301,369,586 | 301,369,586 |
| 2007 | $426,930,085 | 327,347,067 | 327,347,067 |
| 2008 | $484,207,542 | 316,991,081 | 316,991,081 |
| 2009 | $499,151,690 | 331,326,492 | 331,326,492 |
| 2010 | $536,153,168 | 378,210,523 | 378,210,523 |
| 2011 | $635,447,985 | 382,385,420 | 382,385,420 |
Note: Quantity represents Weight in kilograms
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