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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $329,945,641 | 4,149,300 | 4,149,300 |
| 2006 | $395,435,091 | 4,946,684 | 4,946,684 |
| 2007 | $504,381,578 | 4,946,399 | 4,946,399 |
| 2008 | $512,163,873 | 4,175,737 | 4,175,737 |
| 2009 | $363,804,407 | 3,349,511 | 3,349,511 |
| 2010 | $374,004,425 | 3,721,207 | 3,721,207 |
| 2011 | $442,827,168 | 3,715,002 | 3,715,002 |
Note: Quantity represents Weight in kilograms
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