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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $323,835,000 | 38,064,446 | 38,064,446 |
| 2006 | $364,938,000 | 43,168,537 | 43,168,537 |
| 2007 | $435,947,000 | 48,754,959 | 48,754,959 |
| 2008 | $492,388,000 | 49,052,192 | 49,052,192 |
| 2009 | $340,508,000 | 34,372,716 | 34,372,716 |
| 2010 | $418,469,399 | 42,461,534 | 42,461,534 |
| 2011 | $509,395,838 | 46,706,641 | 46,706,641 |
Note: Quantity represents Weight in kilograms
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