Table B-3c. Estimated Standard Error of Percentage for Export Shipment Characteristics by Country of Destination: Percent of Total for 2002 and 1997
Monday, July 2, 2012
Table B-3c. Estimated Standard Error of Percentage for Export Shipment Characteristics by Country of Destination: Percent of Total for 2002 and 1997
[Estimates are based on data from the 2002 and 1997 Commodity Flow Surveys. Because of rounding, estimates may not be additive]
| Country of destination | Value | Tons | ||
|---|---|---|---|---|
| Std. error of percent 2002 | Std. error of percent 1997 | Std. error of percent 2002 | Std. error of percent 1997 | |
| Total | – | – | – | – |
| Canada | 1.2 | 0.8 | 3.0 | 1.8 |
| Mexico | 1.4 | 2.2 | 1.2 | 1.6 |
| All Others | 1.1 | 2.2 | 2.9 | 2.7 |
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.
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.