[Estimates are shown as percents and are based on data from the 2002 Commodity Flow Survey]
|Distance Shipped (Based on Great Circle Distance)||Value||Tons||Ton-miles|
|Coefficient of variation of number||Standard error of percent||Coefficient of variation of number||Standard error of percent||Coefficient of variation of number||Standard error of percent|
|Less than 50 miles||1.4||0.4||3.2||1.0||3.9||0.2|
|50 to 99 miles||1.8||0.2||5.8||0.5||5.8||0.2|
|100 to 249 miles||2.0||0.3||2.9||0.4||2.8||0.4|
|250 to 499 miles||2.3||0.2||3.2||0.4||3.9||0.8|
|500 to 749 miles||3.4||0.3||3.1||0.2||3.6||0.6|
|750 to 999 miles||4.0||0.2||6.2||0.2||6.4||0.7|
|1,000 to 1,499 miles||3.3||0.2||11.2||0.4||12.0||1.7|
|1,500 to 1,999 miles||5.8||0.2||6.9||–||7.0||0.4|
|2,000 miles or more||6.3||0.2||3.9||–||4.3||0.2|
– Represents data cell 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.
NOTE: The Introduction and appendixes give information onf 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: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, United States Data, December 2004.