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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,164,325,000 | 6,671,416 | 6,671,416 |
| 2006 | $1,336,444,000 | 9,352,029 | 9,352,029 |
| 2007 | $2,298,042,000 | 22,473,353 | 22,473,353 |
| 2008 | $2,469,817,000 | 21,077,068 | 21,077,068 |
| 2009 | $1,855,428,000 | 14,988,108 | 14,988,108 |
| 2010 | $1,870,794,512 | 15,365,160 | 15,365,160 |
| 2011 | $1,760,272,825 | 19,104,394 | 19,104,394 |
Note: Quantity represents Weight in kilograms
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