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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $317,828,236 | 80,015,046 | 80,015,046 |
| 2006 | $368,836,010 | 58,693,474 | 58,693,474 |
| 2007 | $366,727,963 | 74,822,263 | 74,822,263 |
| 2008 | $444,495,989 | 64,280,892 | 64,280,892 |
| 2009 | $388,111,828 | 104,892,921 | 104,892,921 |
| 2010 | $456,512,917 | 159,767,899 | 159,767,899 |
| 2011 | $552,903,806 | 110,646,863 | 110,646,863 |
Note: Quantity represents Weight in kilograms
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