Export Table B–2b,,,,,,,,,,
"Estimated Measures of Reliability for Export Shipment Characteristics by Domestic Mode: 2002 and 1997
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"[Estimates are shown as percents and are based on data from the 2002 and 1997 Commodity Flow Surveys]
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Domestic mode of transportation, Value ,,, Tons ,,, Ton-miles ,,,
, CV 02 , CV 97 , Std. error of percent change 1997–2002 , CV 02 , CV 97 , Std. error of percent change 1997–2002 , CV 02 , CV 97 , Std. error of percent change 1997–2002 ,
All modes,4.9,3.8,6.6,11.8,7.3,15.2,15.0,13.2,22.6,
Single modes,5.8,5.1,9.1,12.4,8.1,21.4,15.2,15.2,26.8,
Truck ,5.9,5.6,9.5,11.1,6.9,21.1,26.0,13.3,52.3,
Rail,6.3,30.1,24.8,13.6,14.0,17.8,16.1,21.1,26.2,
Water,20.2,16.4,39.0,21.4,16.1,51.6,17.5,15.5,23.0,
Air (including truck and air),9.9,24.6,35.0,24.1,16.0,42.7,31.5,31.0,101.8,
Pipeline ,S,S,S,S,S,S,S,S,S,
Multiple modes,7.4,8.0,13.4,14.5,10.7,19.2,19.3,14.2,28.6,
"Parcel, U.S.P.S. or courier",8.1,11.5,19.9,7.8,11.4,21.1,14.4,15.9,65.5,
Truck and rail,10.4,8.9,10.3,15.8,7.9,19.6,6.4,7.2,9.7,
Other multiple modes,28.9,19.9,114.0,26.3,23.9,34.7,38.4,30.4,69.5,
Other and unknown modes,16.4,6.5,3.7,21.1,19.2,2.1,22.2,18.8,3.6,
"
KEY: 
— Represents an estimate equal to zero or less than 1 unit of measure.
S Estimate does not meet publication standards because of high sampling variability or poor response quality.
CV Coefficient of variation of number",,,,,,,,,,
"NOTE: The Introduction and appendixes give information on confidentiality protection, sampling error, nonsampling error, sample design, and definitions. Links to this information on the Internet may be found at www.census.gov/cfs.",,,,,,,,,,
"SOURCE:  Research and Innovative Technologies Administration, Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Export Data, March 2005.",,,,,,,,,,







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