Table B-10. Estimated Measures of Reliability for Shipment Characteristics by Commodity Group for State of Origin: 2002 and 1997
Monday, July 2, 2012
Table B-10. Estimated Measures of Reliability for Shipment Characteristics by Commodity Group for State of Origin: 2002 and 1997
[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]
| Code | Commodity (2-digit SCTG) | Value | Tons | Ton-miles | Average miles per shipment | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CV 2002 |
CV 1997 |
Std. error of percent change 1997-2002 | CV 2002 |
CV 1997 |
Std. error of percent change 1997-2002 | CV 2002 |
CV 1997 |
Std. error of percent change 1997-2002 | CV 2002 |
CV 1997 |
Std. error of percent change 1997-2002 | ||
| All Commodities | 8.0 | 4.2 | 9.9 | 10.4 | 11.8 | 18.8 | 16.9 | 8.5 | 21.1 | 12.4 | 23.0 | 44.5 | |
| 01-05 | Agriculture products and fish | 17.3 | 30.1 | 21.2 | 22.6 | 34.2 | 29.8 | 22.9 | 29.9 | 34.2 | 34.6 | S | S |
| 06-09 | Grains, alcohol, and tobacco products | 8.7 | 14.9 | 27.9 | 21.7 | 38.0 | 115.6 | 47.0 | 34.1 | 439.9 | 34.9 | 47.6 | 48.8 |
| 10-14 | Stones, non-metallic minerals, and metallic ores | S | 27.7 | S | 21.1 | 35.3 | 139.3 | 27.2 | 24.9 | 232.0 | 29.8 | S | S |
| 15-19 | Coal and petroleum products | 9.9 | 11.9 | 18.4 | 14.4 | 12.1 | 19.8 | 20.0 | 9.6 | 24.3 | S | 26.5 | S |
| 20-24 | Pharmaceutical and chemical products | 33.6 | 15.3 | 39.9 | S | 23.1 | S | 40.9 | 24.8 | 36.3 | 32.1 | 35.3 | 86.8 |
| 25-30 | Logs, wood products, and textile and leather | 15.6 | 24.3 | 46.0 | 31.7 | 27.3 | 49.5 | 22.4 | 18.9 | 54.1 | 24.4 | 21.0 | 16.2 |
| 31-34 | Base metal and machinery | 13.3 | 14.5 | 20.6 | 18.0 | 22.9 | 24.3 | 34.0 | 19.8 | 55.5 | 14.6 | 16.1 | 35.2 |
| 35-38 | Electronic, motorized vehicles, and precision instruments | 21.0 | 26.9 | 20.7 | 18.5 | 36.4 | 15.4 | 32.8 | 36.8 | 17.6 | 15.8 | 20.1 | 38.1 |
| 39-43 | Furniture, mixed freight and misc manufactured products | 13.2 | 22.9 | 42.6 | S | 22.0 | S | 26.6 | 17.6 | 92.7 | 17.3 | 34.5 | 145.9 |
| -- | Commodity Unknown | 48.7 | 37.6 | 69.9 | S | S | S | S | S | S | S | 49.4 | S |
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.
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, Individual State Data, December 2004.