Figure 5-3
Transportation
Services Index (TSI)
(Seasonally
Adjusted)
Chain-type Index: 2000 = 100 (Yearly average based)
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Notes:
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, avaliable at: http://www.bts.gov/xml/tsi/src/index.xml, as of September 2006.
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