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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,693,690,957 | 46,789,922 | 46,789,922 |
| 2006 | $4,272,355,572 | 58,258,947 | 58,258,947 |
| 2007 | $4,467,044,030 | 63,592,810 | 63,592,810 |
| 2008 | $4,493,171,145 | 54,588,809 | 54,588,809 |
| 2009 | $4,010,860,905 | 61,536,102 | 61,536,102 |
| 2010 | $4,031,677,611 | 77,796,277 | 77,796,277 |
| 2011 | $3,563,082,136 | 73,842,029 | 73,842,029 |
Note: Quantity represents Weight in kilograms
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