| Data | Sources |
| Estimates of input-output accounts, 1992 | U.S. Department of Commerce, Bureau of Economic Analysis, Benchmark Input-Output Accounts for the U.S. Economy, 1992 (forthcoming) and detailed underlying data files for the I-O accounts. |
| Trucks, truck mileage, fuel use by industry, 1992 | U.S. Department of Commerce, Census Bureau, 1992 Census of Transportation, Truck Inventory and Use Survey—United States, May 1995. |
| Statistics on occupation and industry, 1990 | Census Bureau, 1990 Census of Population and Housing, Occupation and Industry—National and State Totals (CD-ROM), March 1995. |
| Employment of truck drivers by industry, 1992 | U.S. Department of Labor, Bureau of Labor Statistics, Employment Projection Division, Industry-Occupation Employment Matrix, 1983-1993 (Diskettes). |
| Energy use, 1992 | U.S. Department of Energy, Energy Information Administration, Annual Energy Review, historical data for 1949-1996. EIA Website. |
| Energy use by transportation modes, 1992 | U.S. Department of Energy, Oak Ridge National Laboratory, Transportation Energy Data Book: Edition 14, May 1994. |
| Vehicle miles of travel by type of vehicles, 1992 | U.S. Department of Transportation, Federal Highway Administration, Highway Statistics 1993. |
