YearTrade ValueWeight (kg)Quantity
2005$49,577,99212973,836
2006$91,122,632260
2007$104,717,87103,144,681
2008$128,032,24601,689,295
2009$138,694,87101,747,088
2010$117,539,01201,768,500
2011$117,498,24801,554,098
Note: Quantity represents Electrical energy in thousands of kilowatt-hours