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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $48,493,677 | 99,109,630 | 99,109,630 |
| 2006 | $187,064,215 | 346,594,381 | 346,594,381 |
| 2007 | $361,896,277 | 658,163,964 | 658,163,964 |
| 2008 | $405,394,490 | 526,419,977 | 526,419,977 |
| 2009 | $28,753,363 | 107,990,893 | 107,990,893 |
| 2010 | $264,684,728 | 413,262,024 | 413,262,024 |
Note: Quantity represents Weight in kilograms
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