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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $121,245,000 | 16,490,752 | 16,490,752 |
| 2006 | $142,444,000 | 17,666,768 | 17,666,768 |
| 2007 | $268,244,000 | 31,368,919 | 31,368,919 |
| 2008 | $350,946,000 | 34,754,694 | 34,754,694 |
| 2009 | $208,451,000 | 24,096,278 | 24,096,278 |
| 2010 | $264,611,000 | 32,653,270 | 32,653,270 |
| 2011 | $302,677,000 | 32,412,021 | 32,412,021 |
Note: Quantity represents Weight in kilograms
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