Table 3.  Commercial Sector Energy Price and Expenditure Estimates by Source, Selected Years, 1970-2006, United States
Year	Primary Energy																	Retail Electricity	Total Energy f,g
	Coal		Natural Gas a		Petroleum									Biomass e		Total f,g
					Distillate Fuel Oil	Kerosene		LPG b	Motor Gasoline c		Residual Fuel Oil	Total
	Prices in Nominal Dollars per Million Btu
1970	0.44		0.75		1.10	0.77		1.24	2.86		0.45	0.90		0.66		0.79		6.09	1.98
1971	0.48		0.80		1.16	0.81		1.31	2.91		0.61	1.01		0.69		0.86		6.44	2.16
1972	0.51		0.86		1.16	0.80		1.32	2.90		0.65	1.04		0.69		0.91		6.71	2.33
1973	0.52		0.91		1.37	0.96		1.43	3.11		0.78	1.20		0.80		1.00		7.06	2.56
1974	1.00		1.05		2.29	2.16		2.53	4.34		1.89	2.25		1.24		1.45		8.91	3.41
1975	1.31		1.32		2.42	2.32		2.60	4.66		1.91	2.39		1.31		1.67		10.11	4.08
1976	1.23		1.61		2.61	2.67		2.84	4.85		1.87	2.49		1.39		1.90		10.82	4.39
1977	1.30		2.00		2.98	2.96		3.34	5.15		2.20	2.84		1.57		2.28		11.99	5.13
1978	1.39		2.20		3.11	3.15		3.53	5.30		2.06	2.92		1.64		2.41		12.78	5.51
1979	1.46		2.69		4.56	4.54		3.99	7.15		3.01	4.15		2.35		3.10		13.72	6.28
1980	1.53		3.31	[R ]	6.45	6.46		5.15	9.77		4.12	5.64		3.10		4.00		16.06	7.87	[R ]
1981	1.79		3.90	[R ]	7.96	7.48		5.95	10.96		5.12	7.00		3.79		4.72		18.44	9.52	[R ]
1982	1.87		4.70		7.68	7.31		6.32	10.44		4.67	6.65		3.82		5.10		20.11	10.40	[R ]
1983	1.74		5.42	[R ]	6.61	7.10		6.83	9.12		4.51	6.51		3.57		5.59		20.57	10.97	[R ]
1984	1.80		5.40		6.60	8.03	[R ]	6.82	8.93		4.94	6.49		3.85		5.58	[R ]	20.89	11.12	[R ]
1985	1.77		5.34		6.33	8.18		8.97	9.01		4.50	6.38		3.71		5.50		21.30	11.68	[R ]
1986	1.68		4.94		4.19	5.21		8.58	6.77		2.71	4.32		2.97		4.62		21.10	11.25	[R ]
1987	1.54		4.64		4.46	5.11		8.02	7.22		3.10	4.65		2.87		4.53		20.44	11.00	[R ]
1988	1.54		4.51		4.18	6.11		8.16	7.33		2.53	4.38		2.90		4.37		20.34	10.85	[R ]
1989	1.54		4.61		4.89	6.01		7.67	8.04		2.92	4.99		2.66		4.60		20.77	11.30	[R ]
1990	1.64		4.70		5.97	7.31		9.01	9.15		3.41	5.95		3.02	[h ]	4.90	[h ]	21.20	11.92	[ h R ]
1991	1.58		4.69		5.46	6.67		9.45	8.98		2.61	5.44		2.98		4.76		21.73	12.10	[R ]
1992	1.60		4.74	[R ]	5.09	5.96		8.82	9.08		2.68	5.23		2.68		4.74		22.15	12.20	[R ]
1993	1.61		5.08		4.93	5.64		9.19	9.13		2.75	5.00		2.63		4.94		22.40	12.61	[R ]
1994	1.57		5.35		4.74	5.94		9.01	9.20		2.90	4.89		2.50		5.11		22.35	12.77	[R ]
1995	1.55		4.94		4.70	5.55		9.11	9.40		3.14	4.97		2.25		4.81		22.29	12.66	[R ]
1996	1.51		5.26		5.63	6.40		10.52	10.28		3.75	6.01		2.47		5.25		22.17	12.80	[R ]
1997	1.51		5.67		5.28	6.18		10.84	10.01		3.27	5.92		2.43		5.55		22.03	13.07	[R ]
1998	1.51		5.38		4.15	4.88		9.78	8.73		2.38	4.88		2.09		5.15		21.48	13.09	[R ]
1999	1.51		5.22		4.65	5.33		9.47	9.45		2.69	5.35		1.89	[R ]	5.10		21.01	12.89	[R ]
2000	1.45		6.55	[R ]	7.48	8.87		12.46	12.02		4.49	8.09		2.99	[R ]	6.69		21.52	13.95	[R ]
2001	1.57		8.32		6.70	8.38		13.59	11.53		4.06	7.64		3.22	[R ]	7.99	[R ]	22.99	15.58	[R ]
2002	1.63		6.49		6.21	8.14		10.84	10.84		4.08	6.96		2.81	[R ]	6.42	[R ]	22.81	14.70	[R ]
2003	1.59		8.02		7.62	9.80		12.95	12.28		5.30	8.38		3.48	[R ]	7.90	[R ]	23.54	15.63	[R ]
2004	1.84		9.23	[R ]	9.58	11.41		15.11	14.29		5.26	9.89		3.54	[R ]	9.09	[R ]	23.95	16.61	[R ]
2005	2.25		10.95	[R ]	13.63	14.96		17.78	17.81	[R ]	7.48	13.47	[R ]	4.70	[R ]	11.11	[R ]	25.40	18.60	[R ]
2006	2.37		11.58		15.74	18.73		19.93	20.18		8.69	15.84		4.75		12.04		27.72	20.64
	Expenditures in Million Nominal Dollars
1970	72		1,844		646	47		127	247		323	1,391		1		3,309		7,319	10,628
1971	85		2,060		690	45		135	244		409	1,523		1		3,669		8,301	11,970
1972	78		2,289		733	44		146	253		422	1,599		1		3,967		9,443	13,410
1973	84		2,421		880	62		150	270		519	1,881		1		4,387		10,707	15,094
1974	173		2,741		1,364	118		243	360		1,120	3,205		2		6,121		13,373	19,494
1975	191		3,385		1,423	114		242	415		939	3,133		3		6,712		16,157	22,869
1976	177		4,379		1,713	117		275	470		1,062	3,638		3		8,197		18,148	26,345
1977	192		5,094		2,014	154		314	518		1,296	4,297		4		9,588		21,023	30,611
1978	229		5,812		2,073	173		321	565		1,098	4,230		5		10,276		23,166	33,443
1979	221		7,623		2,663	356		250	747		1,518	5,534		8		13,386		25,433	38,819
1980	179		8,722	[R ]	3,337	262		296	1,046		2,325	7,267		17		16,185	[R ]	30,611	46,796	[R ]
1981	245		9,905	[R ]	3,641	519		327	1,003		2,138	7,628		20		17,799	[R ]	37,484	55,283	[R ]
1982	291		12,376	[R ]	3,378	222		330	914		1,862	6,706		21	[R ]	19,396	[R ]	41,759	61,155	[R ]
1983	282		13,422	[R ]	4,304	790		424	934		939	7,392		20		21,118	[R ]	43,529	64,647	[R ]
1984	305		13,847	[R ]	4,855	288	[R ]	348	957		1,311	8,121		21		22,298	[R ]	47,304	69,602	[R ]
1985	243		13,187	[R ]	3,995	268		517	866		1,025	6,671		22		20,128	[R ]	50,092	70,219	[R ]
1986	228		11,618	[R ]	2,614	260		489	720		786	4,869		20		16,739	[R ]	51,449	68,188	[R ]
1987	195		11,477	[R ]	2,707	249		509	799		814	5,078		21		16,776	[R ]	51,900	68,676	[R ]
1988	203		12,251	[R ]	2,506	160		513	809		666	4,655		24		17,137	[R ]	54,411	71,548	[R ]
1989	177		12,775	[R ]	2,803	166		544	819		666	4,998		68		18,023	[R ]	57,460	75,483	[R ]
1990	203		12,536	[R ]	3,199	87		581	1,018		785	5,669		104	[h ]	18,516	[ h R ]	60,627	79,143	[ h R ]
1991	183		13,041	[R ]	2,823	81		649	764		554	4,871		104		18,203	[R ]	63,407	81,610	[R ]
1992	187		13,544	[R ]	2,579	66		595	722		506	4,469		102		18,306	[R ]	64,233	82,540	[R ]
1993	187		14,819	[R ]	2,432	79		647	270		475	3,903		106		19,016	[R ]	67,626	86,642	[R ]
1994	184		15,789	[R ]	2,373	116		629	232		498	3,847		99		19,919	[R ]	69,637	89,556	[R ]
1995	181		15,254	[R ]	2,250	123		650	170		445	3,638		106		19,178	[R ]	72,481	91,658	[R ]
1996	181		16,965	[R ]	2,717	135		878	273		515	4,518		127		21,792	[R ]	74,121	95,912	[R ]
1997	195		18,619	[R ]	2,344	152		881	428		363	4,168		125		23,107	[R ]	77,153	100,260	[R ]
1998	151		16,550	[R ]	1,778	152		749	340		203	3,222		99		20,022	[R ]	78,999	99,022	[R ]
1999	154		16,234	[R ]	2,038	143		892	269		197	3,540		104		20,031	[R ]	79,141	99,173	[R ]
2000	125		21,195	[R ]	3,672	263		1,240	535		411	6,121		155	[R ]	27,596	[R ]	85,129	112,725	[R ]
2001	139		25,717	[R ]	3,404	263		1,284	432		284	5,666		145		31,667	[R ]	93,402	125,069	[R ]
2002	143		20,817	[R ]	2,758	130		1,038	489		326	4,741		146		25,847	[R ]	93,763	119,609	[R ]
2003	132		26,270	[R ]	3,668	183		1,288	736		589	6,464		188	[R ]	33,053	[R ]	96,263	129,317	[R ]
2004	189	[R ]	29,376	[R ]	4,506	234		1,419	639		644	7,442		209	[R ]	37,215	[R ]	100,546	137,762	[R ]
2005	215	[R ]	33,662	[R ]	6,098	323		1,622	815	[R ]	866	9,724		267	[R ]	43,868	[R ]	110,522	154,390	[R ]
2006	154		33,575		6,314	284		1,610	983		654	9,845		270		43,844		122,914	166,758
aFor expenditures, natural gas only; excludes supplemental gaseous fuels (SGF). Through 1979, includes unknown quantities of SGF. gThere are no direct fuel costs for hydroelectric, geothermal, wind, photovoltaic, or solar thermal energy. bLiquefied petroleum gases. hThere is a discontinuity in this time series between 1988 and 1989 due to the expanded coverage of the use of wood and waste beginning in 1989. cFor expenditures, includes fuel ethanol blended into motor gasoline, beginning in 1993. Where shown, R = Revised data. dIncludes small amounts of petroleum coke not shown separately. Note:  Expenditure totals may not equal sum of components due to independent rounding. eWood and waste.  Prior to 2001, includes non-biomass waste. Sources:  Data sources, estimation procedures, and assumptions are described in the Technical Notes. fFor 1981 through 1992 expenditures, total includes fuel ethanol blended into gasoline that is not shown in the motor gasoline column