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Table B-6. Estimated Measures of Reliability for Shipment Characteristics by Three-Digit Commodity for the United States: 2002

Monday, July 2, 2012

Table B-6. Estimated Measures of Reliability for Shipment Characteristics by Three-Digit Commodity for the United States: 2002

[For explanation of terms and meaning of abbreviations and symbols, see introductory text]

Excel | CSV

SCTG
Code		 Commodity description (3-digit) 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 1.3 – 2.0 – 3.7 – 2.9
010 Live animals and live fish 21.1 – 24.5 – 26.0 – 18.3
021 Wheat 11.4 – 10.9 0.1 12.2 0.2 17.3
022 Corn, except sweet 9.7 – 10.0 0.3 23.4 1.2 17.5
029 Other cereal grains 17.4 – 17.6 0.1 24.6 0.2 15.6
031 Fresh or chilled potatoes (Irish potatoes), except sweet 19.5 – 21.9 – 34.7 - 32.7
032 Fresh or chilled edible vegetables, except potatoes (Irish potatoes), and 13.2 – 14.5 – 19.8 0.1 36.4
033 Fresh, chilled, or dried edible fruit and nuts 30.9 0.1 35.6 – 25.7 0.2 15.9
034 Soya beans 8.9 – 8.6 0.1 14.6 0.3 18.9
035 Oil seeds and nuts, except olives and soya beans 35.5 – 31.1 – 46.1 – 21.9
036 Bulbs, live plants, and seeds for sowing, n.e.c 17.5 – 29.3 – 39.3 – 13.2
039 Fresh-cut flowers, plants, and parts of plants, and other agricultural 15.7 – 27.5 – 25.9 – S
041 Cereal straw or husks, forage products, residues and waste from the food 12.2 – 18.0 0.1 16.4 0.1 S
042 Animal feed preparations 12.3 – 19.1 0.2 12.9 0.1 21.4
051 Meat including poultry, except preparations 4.5 0.1 4.6 – 6.6 – 13.1
052 Fish, except live, and seafood, except preparations 13.2 – 10.8 – 18.8 – 32.8
053 Preparations, extracts, and juices of meat, fish, or seafood 21.9 – 37.4 – S S 30.3
061 Wheat flour, groats, and meal 19.2 – 22.4 – 21.5 – 17.1
062 Malt, starches, inulin, wheat gluten, and milled or otherwise worked 16.8 – 17.9 – 18.5 0.1 14.2
063 Food preparations of cereals, flour, starch, or milk 15.0 – 19.0 – 17.1 0.1 10.0
064 Bakery products 9.2 – 16.3 – 12.0 – 32.5
071 Dairy products, except chocolate milk, eggnog, and food preparations of milk 10.1 0.1 14.7 0.1 7.9 – 29.2
072 Processed or prepared vegetables, fruit, or nuts, except dried or milled, 9.7 – 11.6 – 15.8 0.2 21.6
073 Coffee, tea, and spices, except unprocessed coffee and unfermented tea 21.5 – 26.0 – 33.7 – 17.9
074 Animal or vegetable fats and oils and their cleavage products, prepared 10.9 – 11.3 – 10.1 – 11.2
075 Cane, beet, and other sugars in solid form, sugar syrups not containing 11.6 – 17.4 – 23.0 0.2 10.5
076 Confectionery, cocoa, and cocoa preparations 8.5 – 9.8 – 9.9 – 14.6
077 Edible preparations, n.e.c. and vinegar 9.3 – 10.6 – 15.5 0.1 11.8
078 Nonalcoholic beverages, n.e.c. and ice 8.8 – 10.7 0.1 16.8 0.1 38.5
081 Malt Beer 5.7 – 5.9 – 18.6 – 10.3
082 Wine and other fermented beverages 8.8 – 12.5 – 17.0 – 15.2
083 Spirituous beverages and ethyl alcohol 9.5 – 13.4 – 20.6 – 11.2
090 Tobacco products 14.4 0.1 29.9 – 36.3 – 22.1
100 Monumental or building stone, except dolomite 29.1 – 29.9 – 22.1 – 16.9
110 Natural sands, except metal-bearing 6.8 – 9.1 0.4 11.8 0.1 10.5
120 Gravel and crushed stone, except dolomite and slate 6.7 – 9.0 1.2 10.5 0.3 7.6
131 Salt 35.6 – 28.1 – 32.9 0.1 14.5
132 Natural calcium phosphates, natural aluminum-calcium phosphates, and 19.8 – 32.5 – 27.2 – 33.8
133 Dolomite 24.9 – 27.1 0.2 45.5 0.3 39.5
139 Other nonmetallic minerals 13.3 – 11.6 – 15.1 0.1 15.6
141 Iron ores and concentrates 15.4 – 14.9 0.1 20.2 0.4 13.2
149 Other metallic ores and concentrates 17.4 – 35.8 – 32.0 – 16.5
151 Nonagglomerated bituminous coal 8.2 – 9.1 0.8 16.9 2.4 8.5
159 Other coal 14.3 – 16.0 0.1 35.5 – S
171 Gasoline 4.8 0.2 5.5 0.5 10.7 0.4 10.3
172 Aviation turbine fuel (types A and B) 16.1 – 17.2 0.1 22.3 – 18.0
180 Fuel oils 6.0 – 6.0 0.3 10.1 0.2 13.5
191 Lubricating oils and greases 13.8 – 16.6 – 25.0 – 25.8
192 Refined petroleum oils and oils obtained from bituminous minerals, n.e.c 14.6 – 16.7 0.1 22.7 – 30.1
193 Gaseous hydrocarbons 14.6 – 14.9 0.1 19.3 0.1 39.9
199 Other products of petroleum refining, and coal products 11.8 – 15.4 0.4 17.3 0.3 23.2
201 Sodium hydroxide (caustic soda) and potassium hydroxide (caustic potash) 10.8 – 13.7 – 15.2 – 18.8
202 Inorganic chemicals, n.e.c. 8.3 – 16.3 0.2 16.7 0.2 20.2
203 Cyclic hydrocarbons 24.7 – 28.7 – 18.8 – 19.4
204 Phenols, phenol-alcohols, aldehydes, cyclic polymers of aldehydes, 14.6 – 42.5 0.1 13.8 – 16.9
205 Organic chemicals, n.e.c 13.7 0.1 17.4 0.2 20.7 0.3 14.6
210 Pharmaceutical products 9.5 0.5 16.7 – 21.0 – 5.7
220 Fertilizers and fertilizer materials 16.9 – 30.2 0.7 24.7 0.7 28.4
231 Paints and varnishes, tanning or dyeing extracts, tannins and their 14.8 – 16.2 – 28.3 0.1 11.2
232 Essential oils and resinoids, and perfumery, cosmetic, or toilet preparations 10.7 – 13.7 – 17.3 – 8.0
233 Soap, organic surface-active agents, cleaning preparations, polishes and 11.0 – 12.7 – 13.8 – 9.2
234 Photographic film, plates, paper, paperboard, or textiles, and chemical 17.5 – 17.7 – 22.5 – 26.5
235 Insecticides, rodenticides, fungicides, herbic 15.9 – 23.9 – 24.3 – 13.1
239 Other chemical products and preparations. 13.3 – 14.0 – 15.5 0.1 7.9
241 Plastics in primary forms, rubber in primary forms or sheets, and 9.6 – 7.6 – 8.5 0.1 10.1
242 Manmade fibers and plastics basic shapes and articles 3.6 – 4.7 – 5.7 – 6.9
243 Rubber articles 12.9 0.1 14.9 – 26.4 0.1 9.2
250 Logs and other wood in the rough 24.2 – S S 34.4 – S
261 Wood chips or particles 25.6 – 25.3 0.2 33.0 – 13.7
262 Lumber, wood continuously shaped along any of its edges or faces, and 7.9 – 8.6 0.1 10.4 0.2 15.1
263 Veneer sheets and sheets for plywood, particle board, fiberboard, plywood, 6.6 – 8.6 – 20.5 0.3 14.4
264 Builders joinery and carpentry of wood, except shingles and shakes 19.9 0.1 15.4 – 24.0 – 13.9
269 Other wood products 10.2 – 18.6 – 42.6 – 16.3
271 Pulp of fibrous cellulosic materials 24.2 – 27.2 – 36.3 0.1 22.6
272 Newsprint in large rolls or sheets 8.7 – 8.5 – 9.8 – 10.0
273 Uncoated paper and paperboard in large rolls or sheets 5.9 – 6.7 – 5.4 – 14.9
274 Coated, impregnated, treated, or worked paper and paperboard, in large 9.8 – 12.3 – 15.2 0.1 10.2
280 Paper or paperboard articles 4.0 – 5.2 – 8.5 – 9.5
291 Printed books, brochures, leaflets, and similar printed products 15.7 0.1 12.1 – 13.5 – 4.7
292 Newspapers, journals, and periodicals 14.5 – 13.1 – 14.9 – 13.5
293 Advertising material, commercial or trade catalogues, and similar printed 7.5 – 15.6 – 13.4 – 7.4
299 Other printed products 8.3 – 18.8 – 14.4 – 5.4
301 Textile fibers, yarns, and broadwoven or knitt 8.8 – 14.0 – 11.3 – 5.2
302 Textile clothing and accessories, and headgear, except safety 9.0 0.3 11.3 – 30.3 0.1 3.4
303 Textiles and textile articles, n.e.c 9.1 0.1 10.9 – 11.3 – 4.1
304 Footwear. 27.6 0.1 19.0 – 18.1 – 4.5
305 Leather and articles, luggage of related materials, and dressed furskins 22.1 – S S S S 5.8
311 Hydraulic cements 11.2 – 11.9 0.1 18.8 – 7.6
312 Ceramic products 21.1 – 29.9 0.1 38.1 0.3 9.3
313 Glass and glass products 13.0 – 37.9 0.2 19.2 0.1 17.0
319 Other nonmetallic mineral products 10.0 – 11.6 0.7 17.2 0.4 12.3
321 Iron and steel in primary forms, in semifinished forms, or in powders or 10.6 – 16.7 – 13.5 – 14.8
322 Flat-rolled products of iron or steel 7.3 – 8.0 0.1 8.4 0.2 8.5
323 Bars, rods, angles, shapes, sections, and wire, of iron or steel 10.0 – 9.5 – 14.1 0.1 8.0
324 Nonferrous metal, except precious, in unwrought forms, in finished basic 7.4 – 22.3 0.1 17.6 0.2 8.6
331 Pipes, tubes, and fittings 6.5 – 19.9 – 10.0 – 13.1
332 Structures and parts, except prefabricated buildings 8.7 – 10.5 – 14.6 – 7.7
333 Handtools, cutlery, except of precious metals, interchangeable tools for 5.8 – 11.3 – 15.4 – 8.1
339 Other articles of metal 11.4 – 24.8 – 21.5 – 8.6
341 Internal-combustion piston engines 12.3 0.1 13.5 – 10.4 – 16.7
342 Turbines, boilers, nuclear reactors, and nonelectric engines and motors, 14.9 – 18.1 – 18.6 – 8.5
343 Pumps, compressors, and fans, and ventilating or recycling hoods 13.0 – 15.7 – 20.9 – 8.4
344 Air-conditioning, refrigerating, or freezing equipment 10.3 – 14.7 – 17.0 – 16.4
345 Materials-handling, excavating, boring, and related machinery and equipment 7.9 – 9.7 – 10.9 – 8.8
349 Other machinery 9.4 0.2 15.8 – 17.0 – 8.4
351 Electric motors, generators, generating sets, rotary converters, 9.4 – 18.8 – 19.0 – 13.3
352 Electric cooking appliances and other electrothermic or electromechanical 22.5 – 39.6 – 42.1 – 7.9
353 Line telephone or telegraph apparatus 27.4 0.2 22.9 – 33.4 – 7.5
354 Electronic entertainment products, except parts 17.6 0.1 17.4 – 14.8 – 8.0
355 Computer and office equipment 10.9 0.2 11.8 – 13.0 – 5.8
356 Prepared unrecorded or prerecorded media 17.7 0.1 13.0 – 13.5 – 3.7
357 Transmission apparatus for radio or television broadcasting, radio 15.0 – 23.6 – 26.5 – 7.6
358 Electronic components and parts 11.1 0.2 41.7 – 27.0 – 5.3
359 Other electronic and electrical equipment 11.9 0.4 16.0 – 22.6 – 10.7
361 Motor vehicles for the transport of less than 11.1 0.3 10.3 – 16.2 – 15.4
362 Motor vehicles for the transport of goods and road tractors for 10.3 – 14.8 – 22.1 – 49.9
363 Other vehicles 10.0 0.1 12.3 – 12.7 – 14.4
364 Parts and accessories for motor vehicles, except motorcycles and armored 12.1 0.5 10.8 – 14.4 0.1 8.3
371 Locomotives and rolling stock, railway track fixtures and fittings, 27.9 – 44.0 – 46.1 0.2 7.8
372 Aircraft and spacecraft 26.7 0.4 14.3 – 28.0 – 4.4
373 Ships, boats, and floating structures 17.7 – 17.7 – 18.4 – 14.2
381 Optical elements, instruments, and apparatus, except photographic and 19.0 – 28.4 – 26.4 – 11.6
382 Photographic and photocopying machines 20.9 – 24.3 – 30.0 – 8.5
383 Surveying, hydrographic, oceanographic, hydro 26.4 – 44.2 – 42.0 – 11.1
384 Instruments, apparatus, and appliances for medical, surgical, dental, or 15.1 0.2 20.7 – 20.7 – 8.6
385 Meters and other instruments and apparatus for 9.4 – 18.6 – 22.3 – 7.1
390 Furniture, mattresses and mattress supports, lamps, lighting fittings 6.2 0.1 11.8 – 6.4 – 6.2
401 Arms and ammunition 25.4 – 33.5 – 29.0 – 4.5
402 Toys, games, and sporting equipment 17.0 0.1 19.8 – 28.3 – 5.3
409 Miscellaneous manufactured products 5.2 0.2 10.5 – 6.1 – 4.3
411 Metallic waste and scrap 15.0 – 19.4 0.3 31.7 0.4 10.9
412 Nonmetallic waste and scrap, except from food processing 23.9 – 20.9 – 27.9 – 17.7
439 Mixed freight 3.6 0.4 5.6 0.1 5.0 0.1 7.9
-- Commodity unknown 9.9 – 22.3 – 41.7 0.1 8.8

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.

NOTES: The Introduction and appendixes give information on 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, United States Data, December 2004.