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 | 8.7 | 17.1 | 23.1 | 22.1 | 33.4 | 51.4 | 10.0 | 10.1 | 14.1 | 17.6 | 26.7 | 76.3 |
| Single modes | 7.7 | 18.5 | 22.9 | 22.6 | 33.9 | 51.8 | 10.8 | 9.7 | 13.7 | 24.4 | 26.2 | 43.3 |
| Truck | 8.5 | 15.8 | 20.9 | 16.5 | 14.3 | 29.9 | 7.0 | 11.3 | 11.8 | 18.0 | 27.6 | 30.8 |
| Rail | S | 33.4 | S | 28.1 | 41.3 | 44.2 | 37.2 | 35.0 | 48.6 | 38.1 | 20.9 | 47.6 |
| Water | 44.1 | S | S | S | S | S | 49.0 | S | S | 26.6 | 31.6 | S |
| Air (including truck and air) | 37.9 | 36.9 | 66.4 | 48.3 | 41.2 | 77.5 | S | S | S | 8.8 | 20.4 | 27.5 |
| Pipeline | 48.6 | S | S | 48.5 | S | S | S | S | S | S | S | S |
| Multiple modes | 24.1 | 40.1 | 91.4 | 28.4 | 48.4 | 128.2 | 44.2 | 48.7 | 101.8 | 11.9 | 24.1 | 33.2 |
| Parcel, USPS or courier | 25.2 | 26.1 | 102.8 | 31.3 | 26.9 | 276.0 | 25.7 | 24.0 | 108.3 | 12.7 | 25.1 | 35.4 |
| Truck and rail | S | S | S | S | S | S | S | S | S | 26.3 | 25.9 | 53.7 |
| Other multiple modes | S | – | S | S | – | S | S | – | S | S | – | S |
| Other and unknown modes | 31.0 | 37.8 | 27.0 | S | 34.5 | S | S | S | S | S | 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 | 21.1 | 23.0 | 34.0 | 22.7 | 22.9 | 27.7 | 17.8 | 18.2 | 33.6 | 26.0 | 40.4 | 112.2 |
| Single modes | 21.6 | 23.2 | 34.8 | 22.9 | 23.1 | 28.0 | 18.1 | 18.2 | 33.8 | 32.3 | 41.4 | 101.4 |
| Truck | 21.2 | 23.2 | 34.1 | 25.8 | 24.3 | 29.1 | 15.1 | 18.1 | 31.6 | 32.6 | 41.8 | 103.3 |
| Rail | S | S | S | S | S | S | S | S | S | 28.1 | 26.8 | 35.1 |
| Water | S | S | S | S | S | S | S | S | S | 28.0 | 31.6 | S |
| 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 | 34.6 | S | S | 41.3 | S | 31.1 | 26.0 | 141.2 |
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 | 8.4 | 25.5 | 27.9 | 20.6 | 22.9 | 44.3 | 33.0 | 23.9 | 91.4 | 27.7 | S | S |
| Single modes | 8.6 | 26.3 | 29.1 | 20.8 | 23.4 | 45.3 | 33.0 | 25.4 | 104.7 | 31.5 | S | S |
| Truck | 8.5 | 26.3 | 28.7 | 21.3 | 23.4 | 44.5 | 33.0 | 25.4 | 84.5 | 32.6 | S | S |
| Rail | S | – | S | S | – | S | S | – | S | 29.8 | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | – | – | – | – | – | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | S | S | S | S | S | S | S | S | S | 28.6 | 47.7 | 42.9 |
| Parcel, USPS or courier | S | S | S | S | S | S | S | S | S | 28.6 | 31.6 | 33.0 |
| Truck and rail | – | S | S | – | S | S | – | S | S | – | 31.6 | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | – | S | S | – | S | S | – | S | S | – | 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 | 42.3 | S | S | 43.2 | 49.8 | 103.0 | 32.3 | 44.1 | 35.3 | 17.4 | S | S |
| Single modes | 42.2 | S | S | 43.1 | 49.8 | 102.7 | 32.2 | 44.1 | 35.2 | 17.3 | S | S |
| Truck | 42.2 | S | S | 43.1 | 49.8 | 102.7 | 32.2 | 44.1 | 35.2 | 17.3 | S | S |
| 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 | 33.1 | S | S | 30.5 | S | S | 29.5 | S | S | 28.3 | 31.3 | 7.2 |
| Single modes | 33.1 | S | S | 30.5 | S | S | 29.6 | S | S | 42.2 | 30.2 | 17.0 |
| Truck | 29.1 | 40.4 | 75.3 | 27.3 | 40.1 | 144.4 | 26.2 | 39.2 | 119.8 | 34.7 | 32.1 | 15.5 |
| Rail | S | S | S | S | S | S | 45.7 | S | S | 26.9 | 31.6 | 54.1 |
| Water | – | – | – | – | – | – | – | – | – | 33.3 | – | – |
| Air (including truck and air) | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Pipeline | 48.9 | S | S | 48.9 | S | S | S | S | S | S | S | S |
| Multiple modes | S | S | S | S | S | S | S | S | S | 27.5 | 31.6 | 5.5 |
| Parcel, USPS or courier | S | S | S | S | S | S | S | S | S | 27.5 | 31.6 | 5.5 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | – | S | S | – | S | S | – | S | 31.5 | – | – |
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 | 22.1 | 45.2 | 65.3 | 24.1 | 34.7 | 35.5 | 26.2 | 17.1 | 27.2 | 25.1 | 16.7 | 24.2 |
| Single modes | 22.5 | 46.1 | 61.7 | 26.0 | 35.0 | 35.0 | 28.9 | 18.5 | 28.0 | 23.9 | 26.7 | 36.6 |
| Truck | 24.2 | S | S | 24.1 | 41.3 | 35.8 | 16.8 | 18.5 | 22.4 | 24.0 | 28.2 | 29.4 |
| Rail | S | 35.6 | S | 41.1 | 40.9 | 54.3 | S | 33.5 | S | 48.1 | 36.4 | 45.2 |
| Water | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Air (including truck and air) | 36.6 | S | S | S | S | S | S | S | S | 11.3 | 26.4 | 33.0 |
| Pipeline | S | – | S | S | – | S | S | S | S | S | S | S |
| Multiple modes | 38.5 | 36.9 | 182.5 | S | S | S | S | S | S | 40.5 | 24.9 | 43.3 |
| Parcel, USPS or courier | 39.9 | 28.3 | 208.5 | 35.6 | 42.6 | 52.2 | 22.9 | 41.3 | 33.4 | 41.1 | 25.2 | 43.6 |
| Truck and rail | S | S | S | S | S | S | S | S | S | 31.6 | 29.8 | 128.2 |
| Other multiple modes | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Other and unknown modes | S | S | S | S | S | S | S | 36.8 | S | 29.2 | 24.8 | 7.8 |
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 | 26.9 | 24.9 | 24.8 | 25.4 | 23.1 | 25.1 | S | 26.0 | S | 15.9 | 17.7 | 43.3 |
| Single modes | 31.0 | 27.0 | 22.4 | 26.2 | 23.2 | 25.1 | S | 26.2 | S | 27.9 | 30.4 | 33.6 |
| Truck | 31.0 | 27.0 | 22.4 | 26.2 | 23.2 | 25.1 | S | 26.2 | S | 28.2 | 29.5 | 33.4 |
| Rail | S | – | S | S | – | S | S | – | S | S | – | S |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | S | S | S | S | S | S | S | S | S | 27.3 | 30.9 | 33.3 |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 32.6 | S | S | 39.3 | S | S | 35.8 | S | S | 15.0 | 19.7 | 23.0 |
| Parcel, USPS or courier | 32.6 | S | S | 39.3 | S | S | 35.8 | S | S | 15.0 | 19.7 | 23.0 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | 45.9 | S | S | S | 48.4 | S | S | S | S | 30.9 | S | 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 | 10.9 | 27.1 | 29.9 | S | S | S | 30.6 | 39.3 | 70.1 | 20.9 | 32.9 | 34.3 |
| Single modes | 9.7 | 27.7 | 27.2 | S | S | S | 30.8 | 39.5 | 70.2 | 32.1 | S | S |
| Truck | 9.1 | 27.7 | 26.5 | S | S | S | 17.8 | 39.5 | 39.1 | 20.6 | S | S |
| Rail | S | – | S | S | – | S | S | – | S | 27.9 | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | 46.4 | S | S | 41.3 | S | S | 43.2 | S | S | 22.7 | 32.9 | 65.3 |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 28.8 | S | S | 30.8 | S | S | 36.1 | S | S | 17.6 | 27.9 | 25.9 |
| Parcel, USPS or courier | 28.8 | S | S | 30.8 | S | S | 36.1 | S | S | 17.6 | 27.9 | 25.9 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | 40.2 | S | S | S | S | S | S | S | S | 37.2 | 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 | 26.1 | 38.9 | 57.1 | 17.7 | 36.0 | 52.6 | 37.1 | S | S | 17.2 | S | S |
| Single modes | 18.1 | 34.1 | 52.4 | 17.1 | 30.8 | 55.8 | 23.0 | 32.6 | 68.6 | S | S | S |
| Truck | 18.8 | 37.9 | 60.0 | 17.1 | 30.9 | 56.1 | 23.2 | 34.7 | 75.6 | 26.8 | S | S |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | 44.0 | 43.8 | 48.7 | S | S | S | S | S | S | 16.7 | 23.4 | 29.6 |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 41.6 | S | S | 49.7 | S | S | S | S | S | 10.4 | 36.0 | 59.1 |
| Parcel, USPS or courier | 33.7 | 35.7 | 59.9 | 41.6 | 48.3 | 90.1 | 48.1 | 43.5 | 159.9 | 13.2 | 42.0 | 77.7 |
| Truck and rail | S | S | S | S | S | S | S | S | S | 27.9 | 29.8 | 59.1 |
| Other multiple modes | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Other and unknown modes | S | S | S | S | S | S | 44.8 | 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 | 28.1 | 42.1 | 109.4 | 21.2 | 38.7 | 40.6 | 26.5 | 41.7 | 32.5 | 16.7 | 21.9 | 17.3 |
| Single modes | 28.8 | 43.3 | 93.6 | 22.9 | 38.8 | 35.0 | 26.1 | 41.9 | 24.8 | 19.5 | 32.7 | 18.5 |
| Truck | 29.0 | 43.5 | 94.2 | 22.8 | 38.8 | 35.0 | 25.8 | 41.9 | 24.5 | 29.9 | 42.7 | 21.0 |
| Rail | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | S | S | S | S | S | S | S | 49.8 | S | 24.3 | 33.2 | 59.8 |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | 33.1 | 32.0 | 518.2 | 26.8 | 31.5 | S | 36.0 | 33.2 | S | 44.4 | 24.1 | 28.1 |
| Parcel, USPS or courier | 35.0 | 32.0 | 444.3 | 38.6 | 31.5 | S | 32.6 | 33.2 | 453.5 | 44.6 | 24.1 | 28.0 |
| Truck and rail | 46.8 | – | – | 47.7 | – | – | S | – | S | 26.4 | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | 31.6 | S | S | S | S | S | S | S | S | S | 47.2 | 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 | 44.7 | S | S | 37.1 | S | S | S | S | S | S | 42.7 | S |
| Single modes | S | S | S | 37.9 | S | S | S | S | S | S | 31.4 | S |
| Truck | S | S | S | 37.9 | S | S | S | S | S | S | 31.4 | S |
| Rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – | – | – | – | – | – |
| Air (including truck and air) | S | – | S | S | – | S | S | – | S | 31.6 | – | – |
| Pipeline | – | – | – | – | – | – | S | S | S | S | S | S |
| Multiple modes | S | S | S | S | S | S | S | S | S | 43.2 | 29.8 | 34.0 |
| Parcel, USPS or courier | S | S | S | S | S | S | S | S | S | 43.2 | 29.8 | 34.0 |
| Truck and rail | – | – | – | – | – | – | – | – | – | – | – | – |
| Other multiple modes | – | – | – | – | – | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | S | S | S | S | S | S | 34.6 | S | 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.