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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,013,738 | 2,238,615,333 | 2,238,615,333 |
| 2006 | $14,573,539 | 3,857,463,151 | 3,857,463,151 |
| 2007 | $59,380,673 | 16,031,795,600 | 16,031,795,600 |
| 2008 | $65,130,557 | 16,842,908,892 | 16,842,908,892 |
| 2009 | $38,062,627 | 10,196,886,090 | 10,196,886,090 |
| 2010 | $29,682,118 | 9,295,054,528 | 9,295,054,528 |
| 2011 | $32,629,834 | 10,657,183,041 | 10,657,183,041 |
Note: Quantity represents Weight in kilograms
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