YearTrade ValueWeight (kg)Quantity
2005$20,998,3000900,408
2006$31,666,50001,176,249
2008$35,269,1000557,758
2009$435,00007,287
2010$19,731,9000271,444
2011$11,168,0000150,884
Note: Quantity represents Electrical energy in thousands of kilowatt-hours