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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $491,701,000 | 40,408,729 | 40,408,729 |
| 2006 | $540,489,000 | 44,936,766 | 44,936,766 |
| 2007 | $666,962,000 | 54,249,225 | 54,249,225 |
| 2008 | $768,400,000 | 61,043,971 | 61,043,971 |
| 2009 | $464,030,000 | 42,483,575 | 42,483,575 |
| 2010 | $627,316,171 | 50,062,517 | 50,062,517 |
| 2011 | $694,657,240 | 47,719,556 | 47,719,556 |
Note: Quantity represents Weight in kilograms
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