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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $274,405,000 | 60,240,439 | 60,240,439 |
| 2006 | $332,473,000 | 71,344,129 | 71,344,129 |
| 2007 | $415,107,000 | 81,797,391 | 81,797,391 |
| 2008 | $488,614,000 | 87,952,920 | 87,952,920 |
| 2009 | $370,703,000 | 65,233,319 | 65,233,319 |
| 2010 | $510,950,259 | 93,696,116 | 93,696,116 |
| 2011 | $613,866,320 | 96,691,987 | 96,691,987 |
Note: Quantity represents Weight in kilograms
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