TABLE 3   Comparisons of Alternative Measures of Output Growth in the Transportation Sector (Compound annual rate),,,
Output measures,1980–2000,1980–1991,1992–2000
Trucking,,,
BEA real output,4.80%,4.80%,3.90%
BLS experimental real output,2.30%,1.30%,2.80%
Monthly chained output index,3.40%,1.70%,4.50%
Railroads,,,
BEA real output,1.80%,1.50%,1.70%
BLS experimental real output,1.80%,0.80%,2.60%
Monthly chained output index,2.20%,1.00%,3.30%
Airlines,,,
BEA real output,5.40%,5.70%,4.60%
BLS experimental real output,5.00%,4.90%,4.40%
Monthly chained output index,5.00%,4.90%,4.40%
Total,,,
BEA real output,4.20%,4.10%,3.90%
BLS experimental real output,2.30%,1.30%,2.80%
Monthly chained output index,3.00%,1.90%,3.70%
"Sources: BEA output data are from U.S. Department of Commerce, Bureau of Economic Analysis, ""Gross Output by Detailed Industry,'' table. See Gullickson and Harper (2002) for the BLS experimental output series.",,,