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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $157,901,000 | 54,462,519 | 54,462,519 |
| 2006 | $310,080,000 | 59,041,552 | 59,041,552 |
| 2007 | $367,290,000 | 57,284,136 | 57,284,136 |
| 2008 | $306,609,000 | 50,146,264 | 50,146,264 |
| 2009 | $149,476,000 | 33,885,614 | 33,885,614 |
| 2010 | $249,835,578 | 45,389,081 | 45,389,081 |
| 2011 | $326,458,755 | 48,714,482 | 48,714,482 |
Note: Quantity represents Weight in kilograms
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