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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $317,409,217 | 1,215,704 | 7,417,546,321 |
| 2006 | $431,942,125 | 1,654,374 | 10,892,107,612 |
| 2007 | $712,633,568 | 2,370,547 | 14,551,117,765 |
| 2008 | $928,574,308 | 0 | 14,505,808,436 |
| 2009 | $897,516,378 | 2,670,404 | 13,194,860,846 |
| 2010 | $1,337,337,921 | 15,068,798 | 17,425,312,452 |
| 2011 | $1,913,647,208 | 16,404,475 | 19,415,428,568 |
Note: Quantity represents Number of items
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