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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $179,987,174 | 14,788 | 14,788 |
| 2006 | $331,248,565 | 18,183 | 18,183 |
| 2007 | $461,053,529 | 20,240 | 20,240 |
| 2008 | $854,522,664 | 31,072 | 31,072 |
| 2009 | $808,563,264 | 25,707 | 25,707 |
| 2010 | $1,157,446,627 | 37,645 | 37,645 |
| 2011 | $1,744,687,582 | 34,791 | 34,791 |
Note: Quantity represents Weight in kilograms
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