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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $163,045,008 | 331,766,565 | 331,766,565 |
| 2006 | $410,065,524 | 886,403,823 | 886,403,823 |
| 2007 | $585,624,871 | 1,003,113,169 | 1,003,113,169 |
| 2008 | $773,381,176 | 836,221,801 | 836,221,801 |
| 2009 | $303,055,001 | 497,708,229 | 497,708,229 |
| 2010 | $419,703,414 | 679,072,697 | 679,072,697 |
| 2011 | $590,464,045 | 781,109,211 | 781,109,211 |
Note: Quantity represents Weight in kilograms
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