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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $180,524,086 | 407,688,576 | 407,688,576 |
| 2006 | $434,570,739 | 809,681,379 | 809,681,379 |
| 2007 | $457,685,087 | 729,779,766 | 729,779,766 |
| 2008 | $611,908,134 | 774,455,355 | 774,455,355 |
| 2009 | $445,000,743 | 896,971,851 | 896,971,851 |
| 2010 | $548,851,905 | 803,074,079 | 803,074,079 |
| 2011 | $920,103,044 | 982,064,536 | 982,064,536 |
Note: Quantity represents Weight in kilograms
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