| Type of fuel | 1992 | 2000 (preliminary data) |
|---|---|---|
| Liquefied petroleum gas1 | 221,000 | 268,000 |
| Compressed natural gas | 23,191 | 100,530 |
| Liquefied natural gas | 90 | 1,900 |
| Methanol, 85%2 | 4,850 | 18,365 |
| Methanol, neat | 404 | 195 |
| Ethanol, 85%2 | 172 | 34,680 |
| Ethanol, 95%2 | 38 | 13 |
| Electricity | 1,607 | 8,661 |
| Total | 251,352 | 432,344 |
1 Numbers rounded to nearest thousand. These estimates are not equal to the sum of federal fleet data (for which exact counts are available) and nonfederal fleet estimates.
2 The remaining portion of 85% methanol and both ethanol fuels is gasoline.
SOURCE: U.S. Department of Energy, Energy Information Administration, Alternatives to Traditional Transportation Fuels 1999, available at http://www.eia.doe.gov, as of October 2000.