YearTrade ValueWeight (kg)Quantity
2005$183,627,266242,858,300
2006$168,206,02602,217,189
2007$216,658,68703,799,481
2008$203,465,67201,726,072
2009$250,752,65804,353,963
2010$315,598,61304,995,132
2011$164,369,41202,143,101
Note: Quantity represents Electrical energy in thousands of kilowatt-hours