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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,277,528 | 2,956,446,347 | 2,956,446,347 |
| 2006 | $8,852,582 | 3,704,728,192 | 3,704,728,192 |
| 2007 | $16,504,304 | 1,607,052,236 | 1,607,052,236 |
| 2008 | $29,368,677 | 3,005,686,270 | 3,005,686,270 |
| 2009 | $10,806,106 | 1,166,318,527 | 1,166,318,527 |
| 2010 | $11,260,897 | 1,514,233,061 | 1,514,233,061 |
| 2011 | $16,901,938 | 2,067,959,337 | 2,067,959,337 |
Note: Quantity represents Weight in kilograms
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