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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $139,183,680 | 1,399,764,875 | 1,399,764,875 |
| 2006 | $153,839,938 | 1,417,137,748 | 1,417,137,748 |
| 2007 | $90,644,210 | 717,391,171 | 717,391,171 |
| 2008 | $263,122,517 | 963,947,949 | 963,947,949 |
| 2009 | $84,256,126 | 603,677,265 | 603,677,265 |
| 2010 | $232,533,235 | 1,088,232,612 | 1,088,232,612 |
| 2011 | $388,974,822 | 1,500,631,402 | 1,500,631,402 |
Note: Quantity represents Weight in kilograms
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