SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, http://www.bts.gov.
NOTE: This table shows the comparative patterns of peaks and
troughs (i.e., turning points) in the economy and the two TSI indexes over
time, and is meant to illustrate the comparative patterns among the series
while providing information on the exact dates of the peaks and troughs. Not every peak or trough in any one series
has a corresponding turning point in the other series.