Table 11.1  World Primary Energy Production by Source, 1970-2006                        (Quadrillion Btu)
Year	Coal	Natural Gas 1	Crude Oil 2	Natural Gas Plant Liquids	Nuclear Electric Power 3	Hydroelectric Power 3	Geothermal 3 and Other 4	Total
1970	62.96	37.09	97.09	3.61	0.90	12.15	1.59	215.39
1971	61.72	39.80	102.70	3.85	1.23	12.74	1.61	223.64
1972	63.65	42.08	108.52	4.09	1.66	13.31	1.68	234.99
1973	63.87	44.44	117.88	4.23	2.15	13.52	1.73	247.83
1974	63.79	45.35	117.82	4.22	2.86	14.84	1.76	250.64
1975	66.20	45.67	113.08	4.12	3.85	15.03	1.74	249.69
1976	67.32	47.62	122.92	4.24	4.52	15.08	1.97	263.67
1977	68.46	48.85	127.75	4.40	5.41	15.56	2.11	272.54
1978	69.56	50.26	128.51	4.55	6.42	16.80	2.32	278.41
1979	73.83	53.93	133.87	4.87	6.69	17.69	2.48	293.36
1980	R 71.27	54.73	128.04	5.10	7.58	17.90	2.94	R 287.56
1981	R 71.68	55.56	120.11	5.37	8.53	18.26	3.10	R 282.61
1982	R 74.33	55.49	114.45	5.35	9.51	18.71	R 3.28	R 281.13
1983	R 74.33	56.12	R 113.98	5.36	10.72	19.69	R 3.58	R 283.78
1984	R 78.46	61.78	116.88	5.73	12.99	20.19	3.73	R 299.76
1985	R 82.28	64.22	115.37	5.83	15.30	20.42	3.82	R 307.24
1986	R 84.32	65.32	120.18	6.15	16.25	20.89	R 3.82	R 316.93
1987	R 86.10	68.48	R 121.08	6.35	17.64	20.90	R 3.84	R 324.39
1988	R 87.98	71.80	125.84	6.65	19.23	21.48	R 4.01	R 336.99
1989	R 89.58	74.24	127.83	6.69	19.74	21.53	R 4.38	R 344.00
1990	91.02	R 76.06	129.35	6.87	20.36	22.35	3.98	R 349.99
1991	R 86.41	R 76.88	128.73	7.12	21.18	22.83	4.08	R 347.23
1992	R 86.23	R 77.08	128.93	7.17	21.28	22.71	R 4.34	R 347.74
1993	R 84.41	R 78.59	128.72	7.47	22.01	23.94	R 4.37	R 349.51
1994	86.46	R 79.35	130.69	8.10	22.41	24.15	R 4.56	R 355.72
1995	R 88.55	R 80.42	133.43	8.40	23.26	25.34	R 4.71	R 364.11
1996	R 89.15	R 84.16	136.73	8.59	24.11	25.79	R 4.86	R 373.40
1997	R 92.87	R 84.11	140.63	8.79	23.88	26.07	R 4.97	R 381.32
1998	R 91.53	R 85.75	143.24	9.02	24.32	26.05	R 4.96	R 384.87
1999	R 91.12	R 87.66	140.95	9.26	25.09	26.55	R 5.16	R 385.79
2000	R 90.43	R 90.99	146.83	9.63	R 25.65	R 26.78	R 5.42	R 395.72
2001	R 95.70	R 93.31	145.57	10.10	26.39	R 26.56	R 5.19	R 402.82
2002	R 97.65	R 96.32	R 143.53	10.28	R 26.67	R 26.53	R 5.53	R 406.50
2003	R 105.34	R 98.50	R 148.41	10.74	R 26.37	26.79	R 5.90	R 422.05
2004	R 114.10	R 101.50	R 155.38	11.10	R 27.32	R 27.89	R 6.41	R 443.69
2005	R 122.07	R 104.75	R 157.65	11.47	R 27.54	R 28.98	R 6.88	R 459.34
2006P	128.50	107.23	157.05	11.68	27.76	29.73	7.47	469.41
1Dry production. R=Revised.  P=Preliminary.   2Includes lease condensate. Notes:  ·  Data in this table do not include recent updates for the United States (see Table 1.2) or for other countries (see http://tonto.eia.doe.gov/cfapps/ipdbproject/IEDIndex3.cfm).  ·  See Note 1, "World Primary Energy Production," at end of section.  ·  Totals may not equal sum of components due to independent rounding. 3Net generation, i.e., gross generation less plant use. Web Page:  For related information, see http://www.eia.doe.gov/international. 4Includes net electricity generation from wood, waste, solar, and wind.  Data for the United States also include other renewable energy.  Sources:  ·  1970-1979—Energy Information Administration (EIA), International Energy Database. ·  1980 forward—EIA, "International Energy Annual 2006" (June-December 2008), Tables F1-F9.