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Table B–5b. Estimated Standard Errors for Shipment Characteristics by Two-Digit Commodity for the United States: Percent of Total for 2002 and 1997
[Estimates are based on data from the 2002 and 1997 Commodity Flow Surveys]
Excel | CSV
|
|
Total |
– |
– |
– |
– |
– |
– |
| 01 |
Live animals and live fish |
– |
– |
– |
– |
– |
– |
| 02 |
Cereal grains |
– |
– |
0.4 |
0.2 |
1.3 |
0.6 |
| 03 |
Other agricultural products |
0.2 |
– |
0.2 |
– |
0.3 |
0.2 |
| 04 |
Animal feed and products of animal origin, n.e.c. |
– |
– |
0.3 |
– |
0.2 |
– |
| 05 |
Meat, fish, seafood, and their preparations |
0.1 |
0.1 |
– |
– |
0.1 |
– |
| 06 |
Milled grain products and
preparations, and
bakery products |
0.1 |
– |
– |
– |
0.1 |
0.1 |
| 07 |
Other prepared foodstuffs and fats and oils |
0.2 |
0.1 |
0.2 |
0.1 |
0.4 |
0.2 |
| 08 |
Alcoholic beverages |
– |
– |
– |
– |
0.1 |
0.1 |
| 09 |
Tobacco products |
0.1 |
– |
– |
– |
– |
– |
| 10 |
Monumental or building stone |
– |
– |
– |
– |
– |
– |
| 11 |
Natural sands |
– |
– |
0.4 |
0.4 |
0.1 |
– |
| 12 |
Gravel and crushed stone |
– |
– |
1.2 |
0.6 |
0.3 |
0.2 |
| 13 |
Nonmetallic minerals n.e.c. |
– |
– |
0.2 |
0.3 |
0.3 |
0.3 |
| 14 |
Metallic ores and concentrates |
– |
– |
0.1 |
0.1 |
0.3 |
0.4 |
| 15 |
Coal |
– |
– |
0.8 |
0.5 |
2.4 |
1.6 |
| 17 |
Gasoline and aviation
turbine fuel |
0.2 |
0.2 |
0.5 |
0.4 |
0.4 |
0.6 |
| 18 |
Fuel oils |
– |
– |
0.3 |
0.3 |
0.2 |
0.2 |
| 19 |
Coal and petroleum products, n.e.c. |
– |
– |
0.4 |
0.3 |
0.3 |
0.4 |
| 20 |
Basic chemicals |
0.1 |
0.3 |
0.4 |
0.2 |
0.4 |
0.7 |
| 21 |
Pharmaceutical products |
0.5 |
0.2 |
– |
– |
– |
– |
| 22 |
Fertilizers |
– |
– |
0.7 |
0.1 |
0.7 |
0.1 |
| 23 |
Chemical products and preparations, n.e.c. |
0.1 |
0.1 |
– |
– |
0.1 |
0.1 |
| 24 |
Plastics and rubber |
0.1 |
0.1 |
– |
– |
0.2 |
0.2 |
| 25 |
Logs and other wood in the rough |
– |
– |
S |
– |
– |
0.1 |
| 26 |
Wood products |
0.2 |
– |
0.2 |
0.2 |
0.5 |
0.3 |
| 27 |
Pulp, newsprint, paper, and
paperboard |
– |
– |
– |
– |
0.2 |
0.1 |
| 28 |
Paper or paperboard articles |
– |
– |
– |
– |
– |
– |
| 29 |
Printed products |
0.1 |
0.6 |
– |
– |
– |
0.1 |
| 30 |
Textiles, leather, and articles of textiles or leather |
0.3 |
0.4 |
– |
– |
0.1 |
– |
| 31 |
Nonmetallic mineral products |
0.1 |
– |
0.7 |
0.8 |
0.5 |
0.2 |
32
|
Base metal in primary or
semifinished forms and
in finished basic shapes |
0.2 |
0.1 |
0.2 |
0.2 |
0.3 |
0.2 |
| 33 |
Articles of base metal |
0.1 |
0.1 |
– |
– |
0.1 |
0.2 |
| 34 |
Machinery |
0.3 |
0.1 |
– |
– |
0.1 |
– |
35
|
Electronic and other
electrical equipment
and components and office equipment |
0.5 |
0.4 |
– |
– |
0.1 |
– |
| 36 |
Motorized and other vehicles (including parts) |
0.6 |
0.3 |
– |
– |
0.2 |
– |
| 37 |
Transportation equipment,
n.e.c. |
0.4 |
0.3 |
– |
– |
0.2 |
– |
| 38 |
Precision instruments and apparatus |
0.2 |
0.1 |
– |
– |
– |
– |
39
|
Furniture, mattresses and
mattress supports,
lamps, lighting fittings, and... |
0.1 |
– |
– |
– |
– |
– |
| 40 |
Miscellaneous manufactured products |
0.2 |
0.4 |
– |
0.2 |
– |
0.1 |
| 41 |
Waste and scrap |
– |
– |
0.3 |
0.1 |
0.4 |
0.1 |
| 43 |
Mixed freight |
0.4 |
0.3 |
0.1 |
0.1 |
0.1 |
0.1 |
| -- |
Commodity unknown |
– |
– |
– |
– |
0.1 |
– |
KEY:
– 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.
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/cfs.
SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, United States Data, December 2004.
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