YearTrade ValueWeight (kg)Quantity
2005$262,737,24526,750,700
2006$266,689,15207,449,810
2007$460,230,027011,603,625
2008$387,259,28709,466,863
2009$360,108,87109,797,604
2010$731,984,45809,749,101
2011$456,693,219011,159,743
Note: Quantity represents Electrical energy in thousands of kilowatt-hours