Table B-5a. Estimated Measures of Reliability for Shipment Characteristics by Two-Digit Commodity for State of Origin: 2002

Table B-5a. Estimated Measures of Reliability for Shipment Characteristics by Two-Digit Commodity for State of Origin: 2002

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

Excel | CSV

Commodity (2-digit SCTG) Value Tons Ton-miles CV of average miles
per shipment
CV Std. error of percent CV Std. error of percent CV Std. error of percent
All Commodities 19.6 23.8 9.2 12.0
01 Live animals and live fish
02 Cereal grains S S 46.0 3.3 38.4 1.3 28.0
03 Other agricultural products 40.3 0.6 S S S S 40.4
04 Animal feed and products of animal origin, n.e.c. 48.4 0.8 42.4 1.3 S S 29.3
05 Meat, fish, seafood, and their preparations 30.1 0.8 27.4 0.2 29.9 0.5 47.9
06 Milled grain products and preparations, and bakery products S S S S S S 25.9
07 Other prepared foodstuffs and fats and oils 26.3 1.6 22.9 0.9 30.1 2.6 29.1
08 Alcoholic beverages 22.0 0.3 21.0 0.1 25.1 0.2 S
09 Tobacco products 34.4 42.8 46.4 38.5
10 Monumental or building stone S S 35.5 0.2 S S 30.5
11 Natural sands S S 41.9 0.7 S S 35.8
12 Gravel and crushed stone S S S S S S S
13 Nonmetallic minerals n.e.c. 34.1 S S 38.9 S
14 Metallic ores and concentrates S S S S S S 29.0
15 Coal S S S S S S 28.0
17 Gasoline and aviation turbine fuel 19.0 1.5 18.8 2.5 18.2 1.5 20.9
18 Fuel oils 19.1 0.6 22.1 1.7 37.6 1.5 S
19 Coal and petroleum products, n.e.c. 36.1 0.5 36.1 1.3 S S S
20 Basic chemicals S S S S 35.9 0.4 S
21 Pharmaceutical products 26.5 0.7 S S S S 23.9
22 Fertilizers S S S S 45.8 0.4 S
23 Chemical products and preparations, n.e.c. 33.7 0.5 43.1 0.2 S S 43.2
24 Plastics and rubber 36.7 0.5 39.2 41.7 0.2 28.7
25 Logs and other wood in the rough 39.5 0.2 40.0 0.7 48.9 1.0 30.3
26 Wood products 19.5 0.7 23.1 1.1 31.1 4.5 21.8
27 Pulp, newsprint, paper, and paperboard 13.8 0.2 16.6 0.3 21.2 1.2 49.5
28 Paper or paperboard articles 27.6 0.6 36.3 0.5 31.4 0.8 23.4
29 Printed products 32.5 0.4 S S S S 27.5
30 Textiles, leather, and articles of textiles or leather 17.0 0.9 36.0 0.1 42.6 0.7 13.7
31 Nonmetallic mineral products S S S S 27.8 0.6 S
32 Base metal in primary or semi finished forms and in finished basic shapes 25.4 0.4 36.9 0.4 S S S
33 Articles of base metal 23.3 0.8 23.9 0.2 26.9 0.3 29.9
34 Machinery 20.0 0.7 20.1 22.4 0.3 S
35 Electronic and other electrical equipment and components and office equipment 18.0 2.5 33.4 27.5 0.1 42.5
36 Motorized and other vehicles (including parts) 20.2 0.4 23.0 27.6 0.2 29.4
37 Transportation equipment, n.e.c. S S 37.4 S S 22.0
38 Precision instruments and apparatus 29.5 1.2 S S S S S
39 Furniture, mattresses and mattress supports, lamps, lighting fittings, and... 40.6 0.6 36.0 S S S
40 Miscellaneous manufactured products 28.4 1.0 28.2 0.1 25.1 0.2 13.1
41 Waste and scrap S S S S 43.4 1.6 30.3
43 Mixed freight 35.6 2.4 17.0 0.6 19.6 0.5 31.1
-- Commodity unknown 44.8 0.2 40.7 S S 40.7

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

NOTES: The Introduction and appendixes give information on confidentially protection, sampling error, nonsampling error, sample design, and definitions. Links to this information on the Internet may be found at www.census.gov/cfs. Coverage for the 2002 Commodity Flow Survey (CFS) differs from the previous surveys due to a change from the 1987 Standard Industrial Classification System to the 1997 North American Industry Classification System and other survey improvements. Therefore, data users are urged to use caution when comparing 2002 CFS estimates with estimates from prior years.

SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Individual State Data, December 2004.