Year	Carbon_Dioxide(CO2,ktonne) 	Sulfur_Dioxide(SO2,ktonne)	Nitrogen_Oxides(NOx,ktonne) 	Net_generation(kMWh)	
2001	2,418,607			11,174				5,290				3,736,644
2002	2,423,963			10,881				5,194				3,858,452
2003	2,445,094			10,646				4,532				3,883,185
2004	2,486,982			10,309				4,143				3,970,555
2005	2,543,838			10,340				3,961				4,055,423
2006	2,488,918			9,524				3,799				4,064,702
2007	2,547,032			9,042				3,650				4,156,745
2008	2,484,012			7,830				3,330				4,119,388
2009	2,269,508			5,970				2,395				3,950,331
2010	2,388,596			5,400				2,491				4,125,060
2011	2,287,071			4,845				2,406				4,100,656