Table B-16a. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics for Export by Country of Destination: 2002

Table B-16a. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics for Export by Country of Destination: 2002

[Estimates are shown as percents and are based on data from the 2002 Commodity Flow Survey]

Excel | CSV

Country Value Tons
CV Std. error of percent CV Std. error of percent
Total 16.2   24.9  
Canada 19.9 4.7 26.1 7.4
Mexico 28.5 3.3 29.9 7.5
All Others 20.3 5.4 39.0 9.8

KEY:
– Represents an estimate equal to zero or less than 1 unit of measure.
S Estimate does not meet publication standards because of highly 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: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.