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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $170,156,273 | 1,313,502,508 | 1,313,502,508 |
| 2006 | $217,547,886 | 1,501,982,895 | 1,501,982,895 |
| 2007 | $330,126,728 | 1,565,144,618 | 1,565,144,618 |
| 2008 | $401,194,242 | 1,401,111,331 | 1,401,111,331 |
| 2009 | $313,532,842 | 1,508,219,508 | 1,508,219,508 |
| 2010 | $439,194,437 | 1,915,449,326 | 1,915,449,326 |
| 2011 | $613,765,167 | 1,905,115,416 | 1,905,115,416 |
Note: Quantity represents Weight in kilograms
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