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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $235,375,000 | 84,584,100 | 84,584,100 |
| 2006 | $250,112,000 | 86,927,000 | 86,927,000 |
| 2007 | $270,297,000 | 84,023,500 | 84,023,500 |
| 2008 | $328,776,000 | 79,915,600 | 79,915,600 |
| 2009 | $252,737,000 | 67,412,567 | 67,412,567 |
| 2010 | $221,884,995 | 65,978,800 | 65,978,800 |
| 2011 | $297,966,834 | 72,495,380 | 72,495,380 |
Note: Quantity represents Weight in kilograms
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