[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]
|CV||Std. error of percent||CV||Std. error of percent||CV||Std. error of percent|
|Less than 50 miles||41.1||4.6||23.3||4.2||25.9||6.8|
|50 to 99 miles||22.3||2.3||31.4||2.4||29.0||2.9|
|100 to 249 miles||S||S||28.6||1.1||29.6||2.5|
|250 to 499 miles||39.3||1.7||S||S||S||S|
|500 to 749 miles||33.0||0.9||40.6||0.4||40.8||1.5|
|750 to 999 miles||S||S||40.1||0.1||39.5||0.9|
|1,000 to 1,499 miles||S||S||S||S||S||S|
|1,500 to 1,999 miles||S||S||S||S||S||S|
|2,000 miles or more||34.7||0.3||S||S||S||S|
– 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.
CV Coefficient of variation of number
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, Metropolitan Data, December 2004.