YearTrade ValueWeight (kg)Quantity
2005$32,679,5390641,908
2006$175,109,66502,511,784
2007$147,789,37502,793,988
2008$264,078,18003,286,786
2009$166,606,85803,304,437
2010$388,842,02405,083,547
2011$281,755,55203,712,713
Note: Quantity represents Electrical energy in thousands of kilowatt-hours