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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,076,812 | 51,250,000 | 51,250,000 |
| 2006 | $6,179,972 | 27,200,178 | 27,200,178 |
| 2007 | $32,424,333 | 96,783,800 | 96,783,800 |
| 2008 | $172,605,830 | 491,049,335 | 491,049,335 |
| 2010 | $474,392,846 | 808,747,266 | 808,747,266 |
Note: Quantity represents Weight in kilograms
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