Table B-20 - Estimated Measures of Reliability for Shipment Characteristics by Commodity Group and Mode of Transportation for State of Origin: 2002 and 1997
Monday, July 2, 2012
Table B-20 - Estimated Measures of Reliability for Shipment Characteristics by Commodity Group and Mode of Transportation 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]
All Commodities
| Mode of transportation | 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 modes | 40.9 | 21.0 | 127.1 | 46.0 | 37.6 | 47.8 | 29.4 | 30.0 | 66.0 | 43.8 | S | S |
| Single modes | 42.7 | 25.5 | 165.1 | 45.7 | 37.8 | 47.5 | 33.8 | 33.1 | 85.1 | 27.9 | S | S |
| Truck | 42.7 | 25.9 | 169.2 | 45.7 | 37.8 | 47.5 | 33.8 | 38.5 | 102.7 | 30.7 | 25.2 | 52.2 |
| Rail | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Water | – | S | S | – | S | S | – | S | S | – | 30.0 | – |
| Air (including truck and air) | S | – | S | S | – | S | S | – | S | 26.1 | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 29.7 | S | S | 40.0 | S | S | S | S | S | 14.8 | 31.1 | 49.2 |
| Parcel, USPS or courier | 29.7 | S | S | 40.0 | S | S | S | S | S | 14.8 | 31.1 | 49.2 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | S | S | S | S | S | S | 21.0 | S | S |
SCTG 01-05, Agriculture products and fish
| Mode of transportation | 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 modes | 48.5 | S | S | S | S | S | S | S | S | 32.4 | 31.3 | 35.2 |
| Single modes | S | S | S | S | S | S | S | S | S | 24.4 | 31.3 | 35.1 |
| Truck | S | S | S | S | S | S | S | S | S | 24.4 | 31.3 | 35.1 |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Parcel, USPS or courier | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | – | S | S | – | S | S | – | S | 29.9 | – | – |
SCTG 06-09, Grains, alcohol, and tobacco products
| Mode of transportation | 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 modes | 23.1 | 34.6 | 39.5 | 27.4 | S | S | 29.2 | 46.3 | 26.8 | 38.0 | 29.8 | 162.9 |
| Single modes | 23.4 | 34.6 | 39.1 | 28.4 | S | S | 30.5 | 46.2 | 26.5 | 14.7 | 29.8 | 32.2 |
| Truck | 23.4 | 34.6 | 39.1 | 28.4 | S | S | 30.5 | 46.2 | 26.5 | 14.7 | 29.8 | 32.2 |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Parcel, USPS or courier | – | – | – | – | – | – | – | – | – | – | – | – |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | S | S | S | S | S | S | 30.0 | 31.6 | S |
SCTG 10-14, Stones, non-metallic minerals, and metallic ores
| Mode of transportation | 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 modes | S | S | S | S | S | S | S | S | S | 31.6 | 31.6 | 287.7 |
| Single modes | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Truck | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Parcel, USPS or courier | – | – | – | – | – | – | – | – | – | – | – | – |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | – | S | S | – | S | S | – | S | S | – | 31.6 | – |
SCTG 15-19, Coal and petroleum products
| Mode of transportation | 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 modes | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Single modes | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Truck | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Parcel, USPS or courier | – | – | – | – | – | – | – | – | – | – | – | – |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | – | – | – | – | – | – | – | – | – | – | – | – |
SCTG 20-24, Pharmaceutical and chemical products
| Mode of transportation | 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 modes | S | S | S | 42.0 | S | S | S | S | S | 37.4 | 28.2 | 631.1 |
| Single modes | S | S | S | 42.2 | S | S | S | S | S | 38.1 | 28.7 | 21.5 |
| Truck | S | S | S | 42.2 | S | S | S | S | S | 38.1 | 28.7 | 21.5 |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | S | – | S | S | – | S | S | – | S | 30.3 | – | – |
| Parcel, USPS or courier | S | – | S | S | – | S | S | – | S | 30.3 | – | – |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | S | S | S | S | S | S | 28.9 | 30.7 | 8.8 |
SCTG 25-30, Logs, wood products, and textile and leather
| Mode of transportation | 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 modes | S | 46.6 | S | 38.9 | 35.7 | 39.5 | 41.6 | S | S | 28.0 | 33.9 | 33.6 |
| Single modes | S | S | S | 40.1 | 38.8 | 44.0 | 47.2 | S | S | 46.6 | 27.7 | 50.4 |
| Truck | S | S | S | 40.1 | 38.8 | 44.0 | 47.2 | S | S | 46.8 | 27.7 | 50.2 |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | S | – | S | S | – | S | S | – | S | 29.9 | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 45.6 | S | S | S | S | S | S | S | S | 16.8 | 31.5 | 51.3 |
| Parcel, USPS or courier | 45.6 | S | S | S | S | S | S | S | S | 16.8 | 31.5 | 51.3 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | S | S | S | S | S | S | S | 33.4 | S |
SCTG 31-34, Base metal and machinery
| Mode of transportation | 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 modes | 32.7 | 41.7 | 23.3 | S | 46.1 | S | S | 49.9 | S | S | S | S |
| Single modes | 42.9 | 43.9 | 29.3 | S | 46.2 | S | S | S | S | S | S | S |
| Truck | 42.9 | 43.9 | 29.3 | S | 46.2 | S | S | S | S | S | S | S |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 35.3 | S | S | 28.6 | S | S | 28.5 | S | S | 33.6 | 31.6 | 28.1 |
| Parcel, USPS or courier | 35.3 | S | S | 28.6 | S | S | 28.5 | S | S | 33.6 | 31.6 | 28.1 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | 40.2 | S | S | S | S | S | S | S | S | S | S | S |
SCTG 35-38, Electronic, motorized vehicles, and precision instruments
| Mode of transportation | 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 modes | S | S | S | 43.8 | S | S | S | S | S | S | 31.6 | S |
| Single modes | S | S | S | 46.2 | S | S | S | S | S | S | 31.6 | S |
| Truck | S | S | S | 46.2 | S | S | S | S | S | S | 31.6 | S |
| Rail | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | S | – | S | S | – | S | S | – | S | 29.9 | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | S | S | S | 44.8 | S | S | 35.9 | S | S | 35.5 | 31.6 | 987.4 |
| Parcel, USPS or courier | S | S | S | 44.8 | S | S | 35.9 | S | S | 35.5 | 31.6 | 987.4 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | – | S | S | – | S | S | – | S | S | – | S |
SCTG 39-43, Furniture, mixed freight and misc manufactured products
| Mode of transportation | 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 modes | 30.8 | 48.3 | 206.6 | 24.6 | S | S | 28.5 | S | S | 35.0 | 41.1 | 61.0 |
| Single modes | 34.1 | S | S | 25.5 | S | S | 34.8 | S | S | S | S | S |
| Truck | 35.3 | S | S | 25.5 | S | S | 35.1 | S | S | 22.8 | S | S |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | S | S | – | S | S | – | S | S | – | 31.6 | – |
| Air (including truck and air) | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 49.9 | S | S | S | S | S | S | S | S | 27.0 | 31.6 | 56.5 |
| Parcel, USPS or courier | 49.9 | S | S | S | S | S | S | S | S | 27.0 | 31.6 | 56.5 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | 46.4 | S | S | S | S | S | 23.7 | S | S |
Commodity Unknown
| Mode of transportation | 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 modes | S | S | S | S | S | S | S | S | S | S | 31.6 | S |
| Single modes | S | S | S | S | S | S | S | S | S | 31.6 | 31.6 | 0.5 |
| Truck | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | S | S | – | S | S | – | S | S | – | 31.6 | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | S | – | S | S | – | S | S | – | S | 43.7 | – | – |
| Parcel, USPS or courier | S | – | S | S | – | S | S | – | S | 43.7 | – | – |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | – | S | S | – | S | S | – | S | S | – | 31.6 | – |
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.