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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $649,405,984 | 2,235,621 | 2,235,621 |
| 2006 | $989,927,892 | 2,605,220 | 2,605,220 |
| 2007 | $642,895,695 | 2,087,803 | 2,087,803 |
| 2008 | $947,673,951 | 2,548,089 | 2,548,089 |
| 2009 | $767,038,304 | 2,860,228 | 2,860,228 |
| 2010 | $1,295,462,864 | 3,305,716 | 3,305,716 |
| 2011 | $1,598,409,938 | 3,304,679 | 3,304,679 |
Note: Quantity represents Weight in kilograms
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