2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $10,000,000 $20,000,000 $30,000,000 $40,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,559,700 | 1,191,299 | 255 |
| 2006 | $9,107,062 | 1,951,406 | 4,902 |
| 2007 | $7,894,287 | 1,274,462 | 407 |
| 2008 | $20,453,251 | 2,368,587 | 428 |
| 2009 | $32,759,265 | 4,145,955 | 233 |
| 2010 | $7,520,479 | 933,828 | 1,350 |
| 2011 | $17,749,111 | 2,508,304 | 299 |
Note: Quantity represents Number of items
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