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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $79,772,916,498 | 210,333,746,804 | 210,333,746,804 |
| 2006 | $98,972,139,520 | 208,694,845,110 | 208,694,845,110 |
| 2007 | $103,830,194,731 | 201,691,980,238 | 201,691,980,238 |
| 2008 | $155,473,624,044 | 202,427,345,028 | 202,427,345,028 |
| 2009 | $79,973,886,501 | 177,251,950,065 | 177,251,950,065 |
| 2010 | $105,775,342,062 | 178,681,423,771 | 178,681,423,771 |
| 2011 | $142,094,443,711 | 175,010,970,696 | 175,010,970,696 |
Note: Quantity represents Weight in kilograms
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