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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $457,413,222 | 3,554,647 | 13,120,356,521 |
| 2006 | $571,994,223 | 4,445,079 | 13,630,766,668 |
| 2007 | $549,368,265 | 3,488,763 | 11,177,991,131 |
| 2008 | $479,691,842 | 3,082,546 | 14,584,848,253 |
| 2009 | $514,262,421 | 2,992,072 | 13,275,494,704 |
| 2010 | $800,485,632 | 4,501,716 | 18,025,711,930 |
| 2011 | $800,729,782 | 4,628,710 | 17,528,073,687 |
Note: Quantity represents Number of items
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