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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $438,126,317 | 328,629,965 | 328,629,965 |
| 2006 | $437,467,348 | 303,199,013 | 303,199,013 |
| 2007 | $593,039,708 | 346,879,700 | 346,879,700 |
| 2008 | $549,116,446 | 304,478,618 | 304,478,618 |
| 2009 | $352,946,909 | 282,483,984 | 282,483,984 |
| 2010 | $436,590,659 | 272,587,725 | 272,587,725 |
| 2011 | $516,368,934 | 274,038,951 | 274,038,951 |
Note: Quantity represents Weight in kilograms
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