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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $57,581 | 11,828 | 7,680 |
| 2006 | $700,254 | 17,721 | 12,379 |
| 2007 | $217,986 | 3,068 | 2,327 |
| 2008 | $264,839 | 3,975 | 4,264 |
| 2009 | $92,957 | 1,547 | 1,173 |
| 2010 | $649,666 | 16,001 | 9,333 |
| 2011 | $119,903 | 3,898 | 2,154 |
Note: Quantity represents Number of pairs
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