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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $143,078,000 | 21,231,000 | 21,231,000 |
| 2006 | $175,924,000 | 26,375,100 | 26,375,100 |
| 2007 | $230,021,000 | 30,769,500 | 30,769,500 |
| 2008 | $299,320,000 | 38,026,300 | 38,026,300 |
| 2009 | $262,534,000 | 34,776,365 | 34,776,365 |
| 2010 | $250,942,248 | 37,567,598 | 37,567,598 |
| 2011 | $273,345,601 | 38,914,963 | 38,914,963 |
Note: Quantity represents Weight in kilograms
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