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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $340,839,326 | 109,422,341 | 7,417,381 |
| 2006 | $366,096,995 | 98,373,116 | 6,140,562 |
| 2007 | $306,218,608 | 73,810,605 | 5,164,256 |
| 2008 | $204,801,785 | 51,426,871 | 3,808,884 |
| 2009 | $28,301,118 | 10,319,001 | 853,460 |
| 2010 | $52,752,378 | 18,248,040 | 1,652,946 |
| 2011 | $13,105,394 | 4,566,509 | 381,524 |
Note: Quantity represents Number of items
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