2005 2006 2007 2008 2009 2010 2011 2012 $0 $500,000 $1,000,000 $1,500,000 $2,000,000 $2,500,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $2,234,434 | 589,753 | 0 |
| 2007 | $2,047,041 | 439,953 | 12,691,721 |
| 2008 | $1,191,302 | 241,016 | 5,440,070 |
| 2009 | $459,160 | 79,017 | 1,877,359 |
| 2010 | $122,728 | 31,461 | 458,622 |
| 2011 | $203,946 | 38,877 | 760,859 |
Note: Quantity represents No Quantity
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