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 | 19.2 | 13.2 | 29.3 | 15.0 | 13.7 | 32.7 | 15.8 | 16.9 | 36.8 | 12.5 | 7.1 | 18.4 | |
| 01-05 | Agriculture products and fish | 27.4 | 20.3 | 24.4 | 34.4 | 23.1 | 24.9 | 39.3 | 28.4 | 11.8 | S | 27.2 | S |
| 06-09 | Grains, alcohol, and tobacco products | 10.4 | 19.8 | 46.8 | 17.0 | 45.4 | 209.3 | 17.0 | 30.3 | 126.1 | 15.4 | 26.1 | 72.2 |
| 10-14 | Stones, non-metallic minerals, and metallic ores | 27.4 | 28.2 | 72.4 | 28.9 | 47.5 | 122.6 | 33.9 | 49.7 | 171.5 | S | S | S |
| 15-19 | Coal and petroleum products | 25.0 | 30.9 | 48.5 | 38.7 | 30.1 | 68.4 | 26.7 | 29.8 | 47.4 | S | 15.2 | S |
| 20-24 | Pharmaceutical and chemical products | 15.0 | 16.5 | 21.3 | 26.9 | 47.3 | 43.9 | 21.4 | 32.6 | 60.9 | 24.8 | 38.8 | 113.9 |
| 25-30 | Logs, wood products, and textile and leather | 8.6 | 17.4 | 15.4 | 18.9 | 23.6 | 23.9 | 29.0 | 28.5 | 28.5 | 9.5 | 15.4 | 37.9 |
| 31-34 | Base metal and machinery | 13.0 | 11.7 | 14.1 | 41.9 | 20.9 | 95.4 | 34.1 | 13.2 | 43.4 | 17.8 | 17.5 | 31.0 |
| 35-38 | Electronic, motorized vehicles, and precision instruments | 36.4 | 29.7 | 49.4 | 25.1 | 19.5 | 45.2 | 16.2 | 29.2 | 42.0 | 18.6 | 25.2 | 43.0 |
| 39-43 | Furniture, mixed freight and misc manufactured products | 26.8 | 10.6 | 82.0 | 28.3 | S | S | 23.7 | 19.7 | 48.2 | 13.6 | 6.2 | 14.8 |
| -- | Commodity Unknown | S | S | S | S | S | S | S | S | S | 38.3 | 27.0 | 22.8 |
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.