Table B-16c. Estimated Standard Errors for Hazardous Material Shipment Characteristics for Export by Country of Destination: Percentage of Total for 2012 and 2007
Monday, July 13, 2015
(Estimates are based on data from the 2012 and 2007 Commodity Flow Surveys)
| Country of destination |
Value— standard error |
Tons— standard error |
Ton-miles (1) — standard error |
|||
|---|---|---|---|---|---|---|
| 2012 | 2007 | 2012 | 2007 | 2012 | 2007 | |
| Total | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | X |
| Canada | 2.1 | 4.1 | 4.0 | 7.1 | 3.9 | X |
| Mexico | 5.3 | 4.5 | 7.6 | 5.4 | 7.1 | X |
| All other countries | 5.7 | 5.3 | 8.1 | 7.5 | 4.4 | X |
KEY: X = Not applicable.
(1) Ton-miles estimates are based on estimated distances traveled along a modeled transportation network. See “Mileage Calculations” section for additional information.
NOTES: 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/econ/cfs>.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2012 Economic Census: Transportation Commodity Flow Survey, December 2014.