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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $188,524,842 | 1,463,645,565 | 1,463,645,565 |
| 2006 | $188,096,834 | 1,521,523,236 | 1,521,523,236 |
| 2007 | $219,594,375 | 1,464,283,375 | 1,464,283,375 |
| 2008 | $270,266,179 | 1,413,497,485 | 1,413,497,485 |
| 2009 | $108,423,813 | 675,097,058 | 675,097,058 |
| 2010 | $255,501,270 | 1,645,157,394 | 1,645,157,394 |
| 2011 | $390,611,419 | 1,904,712,522 | 1,904,712,522 |
Note: Quantity represents Weight in kilograms
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