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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $385,804,133 | 293,525,849 | 293,525,849 |
| 2006 | $398,843,598 | 271,067,563 | 271,067,563 |
| 2007 | $394,133,803 | 254,393,698 | 254,393,698 |
| 2008 | $290,357,433 | 167,416,390 | 167,416,390 |
| 2009 | $193,046,145 | 118,439,177 | 118,439,177 |
| 2010 | $255,394,925 | 146,621,208 | 146,621,208 |
| 2011 | $350,116,623 | 172,609,451 | 172,609,451 |
Note: Quantity represents Weight in kilograms
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