NOTES: Federal expenditures from own funds consists of outlays of the federal government including not only direct spending but also grants to state and local governments. State and local expenditures from own funds include outlays of state and local governments from all sources of funds excluding federal grants. State and local data are reported together because disaggregated federal grants data are not available.
All dollar amounts are expressed in chained 1996 dollars, unless otherwise specified. Current dollar amounts (which are available in appendix B of this report) were adjusted to eliminate the effects of inflation over time.
SOURCES: Except as noted—U.S. Department of Transporta-tion, Bureau of Transportation Statistics, "Government Transportation Financial Statistics Searchable Database," available at http://www.bts.gov, as of February 2003. State and local portion for 2000—U.S. Department of Commerce, U.S. Census Bureau, "State and Local Government Finances," available at ftp://ftp2.census.gov/pub/outgoing/govs/Finance/, as of February 2003.