Table 9.  Commercial Sector Energy Consumption Estimates, Selected Years, 1960-2006, Maryland
Year	Coal a		Natural Gas b		Petroleum							Hydro- electric Power f		Biomass a,g		Geothermal		Retail Electricity Sales	Net Energy		Electrical System Energy Losses h		Total i,j
					Distillate Fuel Oil a	Kerosene a		LPG a,c	Motor Gasoline d	Residual Fuel Oil a	Total e
	Thousand Short Tons		Billion Cubic Feet		Thousand Barrels							Million Kilowatthours						Million Kilowatthours
1960	117		8		2,357	72		109	72	2,442	5,052	0		– –		– –		2,696	– –		– –		– –
1961	108		9		2,584	84		119	80	1,817	4,683	0		– –		– –		2,785	– –		– –		– –
1962	119		10		2,674	84		143	81	1,560	4,542	0		– –		– –		2,979	– –		– –		– –
1963	152		10		2,795	77		152	83	1,597	4,705	0		– –		– –		3,208	– –		– –		– –
1964	149		11		2,801	73		155	86	1,850	4,964	0		– –		– –		3,531	– –		– –		– –
1965	100		13		2,800	70		158	90	1,920	5,039	0		– –		– –		3,937	– –		– –		– –
1966	62		13		2,791	71		186	92	2,216	5,356	0		– –		– –		4,414	– –		– –		– –
1967	50		19		3,062	67		162	94	1,623	5,008	0		– –		– –		4,818	– –		– –		– –
1968	48		21		3,147	73		158	98	1,396	4,872	0		– –		– –		5,296	– –		– –		– –
1969	45		24		3,033	72		173	102	1,580	4,961	0		– –		– –		5,813	– –		– –		– –
1970	36		26		3,206	70		178	103	1,498	5,054	0		– –		– –		6,347	– –		– –		– –
1971	34		28		3,109	78		180	106	2,540	6,013	0		– –		– –		6,797	– –		– –		– –
1972	26		30		3,252	53		205	106	2,500	6,117	0		– –		– –		7,260	– –		– –		– –
1973	32		30		3,368	32		223	112	2,596	6,330	0		– –		– –		7,946	– –		– –		– –
1974	38		30		3,174	33		208	118	1,888	5,420	0		– –		– –		7,658	– –		– –		– –
1975	24		25		3,291	33		219	120	1,169	4,833	0		– –		– –		8,573	– –		– –		– –
1976	19		28		3,200	31		240	124	1,396	4,990	0		– –		– –		9,012	– –		– –		– –
1977	33		28		3,352	20		233	112	1,265	4,982	0		– –		– –		8,848	– –		– –		– –
1978	26		27		3,283	16		218	123	1,002	4,643	0		– –		– –		9,042	– –		– –		– –
1979	155		32		3,635	35		34	123	1,095	4,922	0		– –		– –		9,156	– –		– –		– –
1980	29		29		2,865	20		131	121	1,159	4,296	0		– –		– –		9,387	– –		– –		– –
1981	33		32		1,568	16		161	137	208	2,090	0		– –		– –		9,578	– –		– –		– –
1982	85		31		1,770	88		140	137	452	2,587	0		– –		– –		9,696	– –		– –		– –
1983	84		31		2,789	41		167	164	561	3,721	0		– –		– –		10,117	– –		– –		– –
1984	65		25		3,280	66	[R ]	184	151	765	4,400	0		– –		– –		9,455	– –		– –		– –
1985	94		24		2,169	89		174	170	252	2,855	0		– –		– –		9,621	– –		– –		– –
1986	97		24		1,718	49		134	174	867	2,943	0		– –		– –		10,256	– –		– –		– –
1987	136		26		2,210	23		167	181	1,829	4,409	0		– –		– –		10,861	– –		– –		– –
1988	96		26		2,131	63		158	169	719	3,241	0		– –		– –		11,535	– –		– –		– –
1989	43		27		2,228	89		194	197	1,282	3,990	0	[k ]	– –		– –		10,641	– –		– –		– –
1990	38		24		2,489	48		192	231	548	3,508	0		– –		– –		11,021	– –		– –		– –
1991	34		38		2,659	52		214	118	133	3,177	0		– –		– –		11,259	– –		– –		– –
1992	11		42		2,994	42		241	103	473	3,853	0		– –		– –		11,355	– –		– –		– –
1993	12		44		2,868	85		248	31	191	3,423	0		– –		– –		12,006	– –		– –		– –
1994	31		44		3,407	213		253	31	214	4,117	0		– –		– –		13,914	– –		– –		– –
1995	258		47		3,097	210		291	32	119	3,749	0		– –		– –		23,730	– –		– –		– –
1996	36		46		3,270	151		327	32	108	3,886	0		– –		– –		23,780	– –		– –		– –
1997	49		50		2,481	227		351	31	50	3,140	0		– –		– –		24,070	– –		– –		– –
1998	47		57		2,555	313		320	31	42	3,262	0		– –		– –		24,950	– –		– –		– –
1999	41		58		2,212	254		293	31	52	2,843	0		– –		– –		25,662	– –		– –		– –
2000	74		56		2,582	363		238	116	87	3,385	0		– –		– –		26,506	– –		– –		– –
2001	67		60		2,513	347		286	33	34	3,212	0		– –		– –		26,995	– –		– –		– –
2002	3		64		2,499	171		298	33	63	3,064	0		– –		– –		21,845	– –		– –		– –
2003	5		71		2,232	195		415	33	280	3,155	0		– –		– –		16,950	– –		– –		– –
2004	51	[R ]	70		2,108	126		357	33	87	2,711	0		– –		– –		17,264	– –		– –		– –
2005	29		70		1,785	126		353	34	98	2,395	0		– –		– –		17,932	– –		– –		– –
2006	39		63		1,802	62		331	34	48	2,277	0		– –		– –		29,729	– –		– –		– –
Trillion Btu
1960	2.9		8.3		13.7	0.4		0.4	0.4	15.4	30.3	0.0		0.2		0.0		9.2	50.9		22.7		73.6
1961	2.7		9.1		15.1	0.5		0.5	0.4	11.4	27.8	0.0		0.1		0.0		9.5	49.3		23.1		72.4
1962	3.0		10.0		15.6	0.5		0.6	0.4	9.8	26.9	0.0		0.1		0.0		10.2	50.1		24.4		74.6
1963	3.8		10.8		16.3	0.4		0.6	0.4	10.0	27.8	0.0		0.1		0.0		10.9	53.5		26.2		79.7
1964	3.7		11.8		16.3	0.4		0.6	0.5	11.6	29.4	0.0		0.1		0.0		12.0	57.1		28.6		85.7
1965	2.5		13.3		16.3	0.4		0.6	0.5	12.1	29.9	0.0		0.1		0.0		13.4	59.2		32.1		91.3
1966	1.5		13.8		16.3	0.4		0.7	0.5	13.9	31.8	0.0		0.1		0.0		15.1	62.3		36.1		98.4
1967	1.2		19.9		17.8	0.4		0.6	0.5	10.2	29.5	0.0		0.1		0.0		16.4	67.2		39.3		106.5
1968	1.2		21.5		18.3	0.4		0.6	0.5	8.8	28.6	0.0		0.1		0.0		18.1	69.5		43.1		112.6
1969	1.1		24.5		17.7	0.4		0.7	0.5	9.9	29.2	0.0		0.1		0.0		19.8	74.8		47.3		122.1
1970	0.9		26.5		18.7	0.4		0.7	0.5	9.4	29.7	0.0		0.1		0.0		21.7	78.8		52.4		131.2
1971	0.8		28.9		18.1	0.4		0.7	0.6	16.0	35.8	0.0		0.1		0.0		23.2	88.8		55.9		144.7
1972	0.6		31.0		18.9	0.3		0.8	0.6	15.7	36.3	0.0		0.1		0.0		24.8	92.9		59.4		152.2
1973	0.8		30.3		19.6	0.2		0.8	0.6	16.3	37.5	0.0		0.1		0.0		27.1	95.8		64.4		160.3
1974	0.9		30.4		18.5	0.2		0.8	0.6	11.9	31.9	0.0		0.2		0.0		26.1	89.5		63.3		152.8
1975	0.5		25.5		19.2	0.2		0.8	0.6	7.4	28.2	0.0		0.2		0.0		29.3	83.7		70.3		154.0
1976	0.5		28.6		18.6	0.2		0.9	0.7	8.8	29.1	0.0		0.2		0.0		30.7	89.1		73.8		162.9
1977	0.8		28.0		19.5	0.1		0.9	0.6	8.0	29.0	0.0		0.2		0.0		30.2	88.2		72.3		160.6
1978	0.6		28.2		19.1	0.1		0.8	0.6	6.3	27.0	0.0		0.3		0.0		30.9	86.9		74.9		161.8
1979	3.8		32.9		21.2	0.2		0.1	0.6	6.9	29.0	0.0		0.3		0.0		31.2	97.2		74.8		172.0
1980	0.7		29.1		16.7	0.1		0.5	0.6	7.3	25.2	0.0		0.4		0.0		32.0	87.4	[R ]	77.2		164.6	[R ]
1981	0.8		32.4	[R ]	9.1	0.1		0.6	0.7	1.3	11.8	0.0		0.3		0.0		32.7	78.0	[R ]	76.8		154.8	[R ]
1982	2.1		31.2	[R ]	10.3	0.5		0.5	0.7	2.8	14.9	0.0		0.5		0.0		33.1	81.7	[R ]	78.5		160.2	[R ]
1983	2.1		31.3	[R ]	16.2	0.2		0.6	0.9	3.5	21.5	0.0		0.3		0.0		34.5	89.7	[R ]	81.5		171.2	[R ]
1984	1.6		25.9	[R ]	19.1	0.4	[R ]	0.7	0.8	4.8	25.5	0.0		0.4		0.0		32.3	85.7		73.9		159.6	[R ]
1985	2.3		24.9	[R ]	12.6	0.5		0.6	0.9	1.6	16.2	0.0		0.5		0.0		32.8	76.8		75.6		152.4
1986	2.4		24.6	[R ]	10.0	0.3		0.5	0.9	5.5	17.1	0.0		0.5		0.0		35.0	79.7		79.0		158.7
1987	3.4		26.4		12.9	0.1		0.6	0.9	11.5	26.1	0.0		0.5		0.0		37.1	93.4		82.5	[R ]	175.9
1988	2.4		26.6	[R ]	12.4	0.4		0.6	0.9	4.5	18.8	0.0		0.5		0.0		39.4	87.6	[R ]	87.6	[R ]	175.3	[R ]
1989	1.1		27.6	[R ]	13.0	0.5		0.7	1.0	8.1	23.3	0.0	[k ]	1.2	[k ]	0.0	[k ]	36.3	89.5	[k R ]	84.4	[R ]	174.0	[k R ]
1990	1.0		24.7		14.5	0.3		0.7	1.2	3.4	20.1	0.0		1.6		0.0		37.6	85.0		87.0		171.9	[R ]
1991	0.9		39.1		15.5	0.3		0.8	0.6	0.8	18.0	0.0		1.1		0.0		38.4	97.5		88.1	[R ]	185.6
1992	0.3		43.6		17.4	0.2		0.9	0.5	3.0	22.1	0.0		1.7		0.0		38.7	106.3	[R ]	88.3		194.6	[R ]
1993	0.3		44.7	[R ]	16.7	0.5		0.9	0.2	1.2	19.4	0.0		2.4		0.0		41.0	107.8	[R ]	93.4	[R ]	201.2	[R ]
1994	0.8		45.2	[R ]	19.8	1.2		0.9	0.2	1.3	23.5	0.0		2.3		0.0		47.5	119.3	[R ]	107.0		226.2	[R ]
1995	6.4		47.9	[R ]	18.0	1.2		1.1	0.2	0.7	21.2	0.0		3.6		0.0		81.0	160.1	[R ]	183.9		344.0	[R ]
1996	0.9		47.0	[R ]	19.0	0.9		1.2	0.2	0.7	21.9	0.0		3.8		0.0		81.1	154.8	[R ]	184.5	[R ]	339.3	[R ]
1997	1.2		51.4	[R ]	14.5	1.3		1.3	0.2	0.3	17.5	0.0		3.9		0.0		82.1	156.1	[R ]	186.1		342.2	[R ]
1998	1.2		59.5		14.9	1.8		1.2	0.2	0.3	18.2	0.0		3.3		0.0		85.1	167.3		193.1		360.4	[R ]
1999	1.0		59.9	[R ]	12.9	1.4		1.1	0.2	0.3	15.9	0.0		3.2		0.0		87.6	167.5	[R ]	200.3		367.8	[R ]
2000	1.9		57.4	[R ]	15.0	2.1		0.9	0.6	0.5	19.1	0.0		3.4		0.0		90.4	172.3		205.7	[R ]	378.0	[R ]
2001	1.7		62.0		14.6	2.0		1.0	0.2	0.2	18.0	0.0		2.3	[R ]	0.0		92.1	176.1	[R ]	205.3	[R ]	381.4	[R ]
2002	0.1		65.7		14.6	1.0		1.1	0.2	0.4	17.2	0.0		2.0	[R ]	0.0		74.5	159.4	[R ]	166.2	[R ]	325.6	[R ]
2003	0.1		72.6		13.0	1.1		1.5	0.2	1.8	17.5	0.0		2.3	[R ]	0.0		57.8	150.4	[R ]	127.6	[R ]	278.0	[R ]
2004	1.2		72.2	[R ]	12.3	0.7		1.3	0.2	0.5	15.0	0.0		2.8	[R ]	0.0		58.9	150.1	[R ]	130.3	[R ]	280.5	[R ]
2005	0.7		72.9	[R ]	10.4	0.7		1.3	0.2	0.6	13.2	0.0		3.0	[R ]	0.0		61.2	151.0	[R ]	133.8	[R ]	284.8	[R ]
2006	1.0		65.0		10.5	0.4		1.2	0.2	0.3	12.5	0.0		3.1		0.0		101.4	183.1		219.3		402.4
aThe continuity of these data series estimates may be affected by changing data sources and estimation methodologies.  See the Technical Notes for each type of energy. iSmall amounts of solar thermal and photovoltaic energy consumed in the commercial sector cannot be separately identified and are included in residential consumption. bPhysical unit data include supplemental gaseous fuels (SGF) for all years; Btu data exclude SGF for 1980 forward. jFrom 1981 through 1992, includes fuel ethanol blended into motor gasoline but not shown in the motor gasoline column. cLiquefied petroleum gases. kThere is a discontinuity in this time series between 1988 and 1989 due to the expanded coverage of renewable energy sources beginning in 1989. dBeginning in 1993, includes fuel ethanol blended into motor gasoline. – – = Not applicable. eIncludes small amounts of petroleum coke not shown separately. Where shown, R = Revised data and (s) = Physical unit value less than 0.5 or Btu value less than 0.05. fConventional hydroelectric power.  Does not include pumped-storage hydroelectricity. Note:  Totals may not equal sum of components due to independent rounding. gWood and waste. Prior to 2001, includes non-biomass waste. Sources:  Data sources, estimation procedures, and assumptions are described in the Technical Notes. hIncurred in the generation, transmission, and distribution of electricity plus plant use and unaccounted for electrical system energy losses.