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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $158,098,235 | 3,133,051 | 456,529,912 |
| 2006 | $219,740,209 | 3,371,961 | 545,159,226 |
| 2007 | $231,719,471 | 3,589,080 | 517,083,427 |
| 2008 | $192,429,996 | 0 | 416,359,030 |
| 2009 | $159,508,998 | 0 | 397,219,487 |
| 2010 | $113,462,561 | 0 | 323,218,029 |
| 2011 | $67,196,910 | 1,211,210 | 187,258,407 |
Note: Quantity represents Length in metres
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