Ozone Season NOₓ Emissions (thousand tons)				Ozone Season NOₓ Rate (lb/mmBtu)
Primary Fuel	2000	2005	2010	2018	2000	2005	2010	2018
Coal	Ozone Season NOₓ Emissions (thousand tons)	1,020	480	403	230	Ozone Season NOₓ Rate (lb/mmBtu)	0.41	0.19	0.16	0.11
Gas	Ozone Season NOₓ Emissions (thousand tons)	158	115	90	63	Ozone Season NOₓ Rate (lb/mmBtu)	0.24	0.11	0.07	0.04
Oil	Ozone Season NOₓ Emissions (thousand tons)	9	12	4	2	Ozone Season NOₓ Rate (lb/mmBtu)	0.22	0.22	0.14	0.11
Other	Ozone Season NOₓ Emissions (thousand tons)	1	2	2	2	Ozone Season NOₓ Rate (lb/mmBtu)	0.40	0.21	0.12	0.07
Total / Average	Ozone Season NOₓ Emissions (thousand tons)	1,188	609	499	297	Ozone Season NOₓ Rate (lb/mmBtu)	0.37	0.16	0.13	0.08