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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $766,842,680 | 118,322,468 | 118,322,468 |
| 2006 | $820,648,750 | 118,709,624 | 118,709,624 |
| 2007 | $1,527,109,290 | 216,964,790 | 216,964,790 |
| 2008 | $1,574,974,234 | 208,787,373 | 208,787,373 |
| 2009 | $1,192,246,496 | 153,699,324 | 153,699,324 |
| 2010 | $1,340,225,408 | 174,338,135 | 174,338,135 |
| 2011 | $1,525,845,574 | 194,495,002 | 194,495,002 |
Note: Quantity represents Weight in kilograms
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