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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $158,206,728 | 280,222,109 | 280,222,109 |
| 2006 | $188,002,029 | 290,158,348 | 290,158,348 |
| 2007 | $158,538,035 | 230,621,656 | 230,621,656 |
| 2008 | $178,575,832 | 259,251,594 | 259,251,594 |
| 2009 | $119,075,232 | 160,252,954 | 160,252,954 |
| 2010 | $235,696,424 | 286,873,527 | 286,873,527 |
| 2011 | $360,401,104 | 222,224,519 | 222,224,519 |
Note: Quantity represents Weight in kilograms
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