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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $885,141 | 3,879,945,617 | 3,237,775,657 |
| 2006 | $918,148 | 3,897,198,363 | 3,897,187,510 |
| 2007 | $1,151,765 | 4,118,206,838 | 4,118,183,140 |
| 2008 | $1,221,764 | 4,454,223,054 | 4,443,337,112 |
| 2009 | $1,208,287 | 4,503,733,596 | 4,690,523,860 |
Note: Quantity represents Volume in litres
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