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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $492,671,869 | 61,027,111 | 61,027,111 |
| 2006 | $562,610,508 | 57,401,917 | 57,401,917 |
| 2007 | $671,049,764 | 57,862,607 | 57,862,607 |
| 2008 | $708,359,022 | 54,510,405 | 54,510,405 |
| 2009 | $573,678,643 | 39,521,505 | 39,521,505 |
| 2010 | $665,926,345 | 49,853,871 | 49,853,871 |
| 2011 | $757,624,516 | 59,819,748 | 59,819,748 |
Note: Quantity represents Weight in kilograms
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