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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $477,169,721 | 6,776,984 | 6,776,984 |
| 2006 | $440,761,506 | 7,703,026 | 7,703,026 |
| 2007 | $440,373,021 | 8,238,894 | 8,238,894 |
| 2008 | $332,410,389 | 5,350,184 | 5,350,184 |
| 2009 | $277,401,641 | 5,028,374 | 5,028,374 |
| 2010 | $197,092,017 | 6,852,933 | 6,852,933 |
Note: Quantity represents Weight in kilograms
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