a Includes a very small amount of other ethers, primarily tertiary-amyl-methyl-ether and ethyl-tertlary-butyl-ether.
b Gasoline consumption includes ethanol in gasohol and MTBE.
c Total fuel consumption is the sum of alternative fuels and traditional fuels. Oxygenate consumption is included in gasoline consumption.
KEY: MTBE=methyl-tertiary-buytl-Hether; P=preliminary.
NOTE: Totals may not equal sum due to rounding.
SOURCE: U.S. Department of Energy, Energy Information Administration, Alternatives to Traditional Transportation Fuels 1997 (Washington, DC: 1998).
