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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $413,199,410 | 330,056,774 | 330,056,774 |
| 2006 | $441,065,994 | 317,660,519 | 317,660,519 |
| 2007 | $601,753,788 | 379,928,429 | 379,928,429 |
| 2008 | $654,159,449 | 360,451,146 | 360,451,146 |
| 2009 | $487,043,273 | 380,299,681 | 380,299,681 |
| 2010 | $724,439,765 | 473,203,411 | 473,203,411 |
| 2011 | $910,938,688 | 537,919,215 | 537,919,215 |
Note: Quantity represents Weight in kilograms
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