Figure 10 Transportation Services Index (TSI)
Figure 10 Transportation Services Index (TSI)
(Seasonally Adjusted)
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Notes: 2005 data are through May. March-May 2005 data are preliminary. The TSI total is a single index measure of monthly output of for-hire transportation services in the United States using 2000 as the base year.
Source: Compiled by U.S. Department of Transportation (USDOT), Bureau of Transportation Statistics (BTS), special calculation, October 2005, avaliable at: http://www.bts.gov/xml/tsi/src/index.xml.