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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $578,349,723 | 11,634,901,960 | 11,634,901,960 |
| 2006 | $630,446,044 | 8,166,115,800 | 8,166,115,800 |
| 2007 | $710,885,465 | 9,191,082,832 | 9,191,082,832 |
| 2008 | $1,217,630,094 | 0 | 0 |
| 2009 | $346,509,016 | 3,762,464,888 | 3,762,464,888 |
| 2010 | $1,037,905,196 | 9,221,422,888 | 9,221,422,888 |
| 2011 | $1,161,285,678 | 8,475,523,960 | 8,475,523,960 |
Note: Quantity represents Weight in kilograms
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