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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $203,705,843 | 7,822,302 | 7,822,302 |
| 2006 | $186,243,624 | 6,790,550 | 6,790,550 |
| 2007 | $12,978,852,715 | 277,913,348 | 277,913,348 |
| 2008 | $13,648,457,744 | 275,220,677 | 275,220,677 |
| 2009 | $10,837,249,093 | 197,837,299 | 197,837,299 |
| 2010 | $12,448,374,974 | 219,343,363 | 219,343,363 |
| 2011 | $12,597,633,236 | 208,469,108 | 208,469,108 |
Note: Quantity represents Weight in kilograms
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