GTL U.S. Electrical Generation GS1 1960 - 1981 GXL GYL Net Generation - Billions KWH GYS 0 GYE 0 GYI 0 GYP 0 GXT 0 GXS 0 GXE 0 GTY 3 GXG 0 GYG 1 GTC 1 GBC 0 LGN 1 G1C 5 G1S 1 G1T Coal G2C 2 G2S 2 G2T Oil G3C 4 G3S 3 G3T Gas G4C 6 G4S 4 G4T G5C 3 G5S 5 G5T G6C 7 G6S 6 G6T G7C 0 G7S 0 G8C 0 G8S 0 R1D1 266,403 R1D2 369,571 R1D3 583,706 R1D4 770,853 R1D5 833,945 R1D6 922,985 R1D7 950,977 R1D8 965,1076 R1D9 985,1162 R1D10 1009,1204 R2D1 85,46 R2D2 115,65 R2D3 336,182 R2D4 506,289 R2D5 556,320 R2D6 624,358 R2D7 636,364 R2D8 523,303 R2D9 420,246 R2D10 351,206 R3D1 1724,158 R3D2 2321,221 R3D3 3932,373 R3D4 3158,300 R3D5 3081,295 R3D6 3191,306 R3D7 3188,305 R3D8 3491,329 R3D9 3682,346 R3D10 3640,346 R1L1 1960 R1L2 1965 R1L3 1970 R1L4 1975 R1L5 1976 R1L6 1977 R1L7 1978 R1L8 1979 R1L9 1980 R1L10 1981 .