Table 2.1a  Energy Consumption by Sector, 1949-2006                         (Trillion Btu)
Year	End-Use Sectors								Electric Power Sector 3	Adjustments 6	Total 5
	Residential		Commercial 1		Industrial 2		Transportation
	Primary 4	Total 5	Primary 4	Total 5	Primary 4	Total 5	Primary 4	Total 5	Primary 4
1949	4,475	5,614	2,661	3,661	12,627	14,717	7,880	7,990	4,339	(s)	31,982
1950	4,848	6,007	2,824	3,883	13,881	16,233	8,384	8,493	4,679	(s)	34,616
1951	5,124	6,400	2,727	3,863	15,118	17,669	8,934	9,042	5,071	(s)	36,974
1952	5,179	6,581	2,662	3,862	14,662	17,302	8,907	9,003	5,338	(s)	36,748
1953	5,075	6,581	2,500	3,759	15,328	18,201	9,031	9,123	5,730	(s)	37,664
1954	5,286	6,870	2,445	3,720	14,306	17,146	8,823	8,903	5,780	(s)	36,639
1955	5,633	7,303	2,548	3,882	16,091	19,472	9,475	9,551	6,461	(s)	40,208
1956	5,866	7,690	2,592	4,008	16,562	20,196	9,791	9,860	6,942	(s)	41,754
1957	5,772	7,740	2,434	3,946	16,513	20,205	9,837	9,897	7,231	(s)	41,787
1958	6,155	8,230	2,541	4,103	15,798	19,307	9,953	10,005	7,198	(s)	41,645
1959	6,224	8,447	2,630	4,353	16,519	20,316	10,298	10,349	7,794	(s)	43,466
1960	6,689	9,078	2,702	4,589	16,977	20,823	10,560	10,597	8,158	(s)	45,087
1961	6,815	9,325	2,744	4,707	16,993	20,937	10,735	10,770	8,453	(s)	45,739
1962	7,122	9,825	2,901	5,014	17,590	21,768	11,186	11,221	9,029	(s)	47,828
1963	7,135	10,034	2,897	5,227	18,366	22,730	11,621	11,655	9,627	(s)	49,646
1964	7,161	10,291	2,949	5,439	19,427	24,090	11,965	11,998	10,316	(s)	51,817
1965	7,328	10,689	3,150	5,820	20,124	25,075	12,400	12,434	11,014	(s)	54,017
1966	7,549	11,218	3,384	6,299	21,030	26,397	13,069	13,102	11,985	(s)	57,017
1967	7,741	11,670	3,738	6,871	21,013	26,616	13,718	13,752	12,698	(s)	58,908
1968	7,963	12,368	3,866	7,297	21,872	27,888	14,831	14,866	13,887	(s)	62,419
1969	8,277	13,205	4,046	7,795	22,654	29,114	15,471	15,506	15,174	(s)	65,621
1970	8,353	13,798	4,196	8,307	22,975	29,641	16,061	16,098	16,259	(s)	67,844
1971	8,457	14,278	4,283	8,681	22,732	29,601	16,693	16,729	17,124	(s)	69,289
1972	8,655	14,891	4,369	9,145	23,532	30,953	17,681	17,716	18,466	(s)	72,704
1973	8,250	14,930	4,381	9,507	24,741	32,653	18,576	18,612	19,753	7	75,708
1974	7,928	14,683	4,221	9,363	23,816	31,819	18,086	18,119	19,933	7	73,991
1975	8,006	14,842	4,023	9,466	21,454	29,447	18,209	18,244	20,307	1	71,999
1976	8,408	15,441	4,333	10,035	22,685	31,430	19,065	19,099	21,513	8	76,012
1977	8,207	15,689	4,217	10,177	23,193	32,307	19,784	19,820	22,591	7	78,000
1978	8,272	16,156	4,269	10,481	23,276	32,733	20,580	20,615	23,587	2	79,986
1979	7,934	15,842	4,333	10,627	24,211	33,962	20,436	20,471	23,987	2	80,903
1980	R 7,453	R 15,787	R 4,074	R 10,563	R 22,610	R 32,077	19,658	19,696	R 24,327	-1	R 78,122
1981	R 7,058	R 15,295	R 3,805	R 10,602	R 21,338	R 30,756	19,476	19,513	R 24,488	3	R 76,168
1982	R 7,154	R 15,557	R 3,835	R 10,847	R 19,075	R 27,656	19,051	19,088	R 24,034	4	R 73,153
1983	R 6,841	R 15,457	R 3,806	R 10,923	R 18,577	R 27,480	R 19,132	R 19,175	R 24,679	3	R 73,038
1984	R 7,148	R 15,926	R 4,026	R 11,494	R 20,211	R 29,638	R 19,607	R 19,654	R 25,719	3	R 76,714
1985	R 7,161	R 16,088	R 3,695	R 11,444	R 19,466	R 28,875	R 20,041	R 20,087	R 26,132	-4	R 76,491
1986	R 6,922	R 16,029	R 3,657	R 11,604	R 19,096	R 28,331	R 20,740	R 20,789	R 26,338	3	R 76,756
1987	R 6,941	R 16,321	R 3,736	R 11,943	R 19,974	R 29,441	R 21,419	R 21,469	R 27,104	-3	R 79,173
1988	R 7,372	R 17,186	R 3,958	R 12,575	R 20,882	R 30,736	R 22,267	R 22,318	R 28,338	3	R 82,819
1989	R 7,586	R 17,858	R 4,004	R 13,203	R 20,895	R 31,395	R 22,425	R 22,479	3,R 30,025	9	R 84,944
1990	R 6,570	R 17,015	R 3,858	R 13,333	R 21,206	R 31,894	R 22,366	R 22,420	R 30,660	-9	R 84,652
1991	R 6,758	R 17,490	R 3,906	R 13,512	R 20,852	R 31,485	R 22,065	R 22,118	R 31,025	1	R 84,607
1992	R 6,963	R 17,427	R 3,951	R 13,454	R 21,785	R 32,659	R 22,363	R 22,416	R 30,893	(s)	R 85,956
1993	R 7,156	R 18,289	R 3,934	R 13,836	R 21,783	R 32,719	22,716	22,770	R 32,025	-10	R 87,603
1994	R 6,991	R 18,181	R 3,979	R 14,111	R 22,420	R 33,606	23,312	23,367	R 32,563	-6	R 89,260
1995	R 6,946	R 18,578	R 4,063	R 14,698	R 22,746	R 34,045	23,793	23,849	R 33,621	3	R 91,173
1996	R 7,471	R 19,562	R 4,235	R 15,181	R 23,443	R 34,988	24,384	24,439	R 34,638	4	R 94,175
1997	R 7,040	R 19,026	R 4,257	R 15,694	R 23,721	R 35,288	24,697	24,752	R 35,045	6	R 94,765
1998	R 6,424	R 19,021	R 3,964	R 15,979	R 23,211	R 34,928	25,203	R 25,258	R 36,385	-3	R 95,183
1999	R 6,784	R 19,621	R 4,007	R 16,384	R 22,991	R 34,855	25,894	25,951	R 37,136	6	R 96,817
2000	R 7,169	R 20,488	R 4,227	R 17,176	R 22,871	R 34,757	26,492	26,552	R 38,214	2	R 98,975
2001	R 6,879	R 20,106	R 4,036	R 17,141	R 21,836	R 32,806	R 26,215	R 26,278	R 37,366	R -6	R 96,326
2002	R 6,938	R 20,874	R 4,099	R 17,367	R 21,857	R 32,765	R 26,787	R 26,848	R 38,171	5	R 97,858
2003	R 7,252	R 21,208	R 4,239	R 17,351	R 21,576	R 32,650	R 26,928	R 27,003	R 38,218	-3	R 98,209
2004	R 7,020	R 21,179	R 4,179	R 17,663	R 22,455	R 33,610	R 27,820	R 27,899	R 38,876	(s)	R 100,351
2005	R 6,875	R 21,652	R 4,109	R 17,971	R 21,653	R 32,733	R 28,249	R 28,331	R 39,799	6	R 100,691
2006P	6,403	21,054	3,927	18,001	21,586	32,426	28,313	28,401	39,653	-10	99,873
1Commercial sector, including commercial combined-heat-and-power (CHP) and commercial electricity-only plants. 6A balancing item.  The sum of primary consumption in the five energy-use sectors equals the sum of total consumption in the four end-use sectors.  However, total energy consumption does not equal the sum of the sectoral components due to the use of sector-specific conversion factors for natural gas and coal. 2Industrial sector, including industrial combined-heat-and-power (CHP) and industrial electricity-only plants. R=Revised.  P=Preliminary.  (s)=Less than 0.5 trillion Btu.   3Electricity-only and combined-heat-and-power (CHP) plants within the NAICS (North American Industry Classification System) 22 category whose primary business is to sell electricity, or electricity and heat, to the public.  Through 1988, data are for electric utilities only; beginning in 1989, data are for electric utilities and independent power producers. Notes:  ·  See Note 2, "Classification of Power Plants Into Energy-Use Sectors," at end of Section 8. ·  Totals may not equal sum of components due to independent rounding. 4See "Primary Energy Consumption" in Glossary. Sources:  Tables 2.1b-2.1f. 5Total consumption consists of primary energy consumption, electricity retail sales, and electrical system energy losses.  See Note, "Electrical System Energy Losses," at end of section.