YearTrade ValueWeight (kg)Quantity
2005$478,799,26707,990,575
2006$655,798,37208,983,485
2007$528,812,52109,463,644
2008$696,057,21406,709,908
2009$617,318,261011,469,504
2010$708,137,104011,970,585
2011$758,813,782010,527,780
Note: Quantity represents Electrical energy in thousands of kilowatt-hours