Table 7: Tonnage by Two-Digit Commodity: 2007

Table 7: Tonnage by Two-Digit Commodity: 2007

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SCTG
code1
Commodity description Tons2
(thousands)
  All commodities 13,016,610
12 Gravel and crushed stone 1,885,219
15 Nonagglomerated bituminous coal 1,234,583
31 Nonmetallic mineral products 1,182,580
17 Gasoline and aviation turbine fuel 1,135,395
19 Coal and petroleum products, NEC3 847,597
18 Fuel oils 692,777
02 Cereal grains 672,952
11 Natural sands 484,498
07 Other prepared foodstuffs and fats and oils 461,975
26 Wood products 413,844
20 Basic chemicals 408,198
32 Base metal in primary or semifinished forms 397,286
43 Mixed freight 313,129
03 Other agricultural products 271,460
13 Nonmetallic minerals, NEC 3 257,185

1 Based on 2-digit code for Standard Classification of Transported Goods (SCTG).

2 Horizontal lines and color codes are used within the table to group the commodities. Commodities within the same group, or the same color code, cannot be determined to be different statistically from one another. However, from top to bottom, a change in grouping, or a change in color, denotes a statistical decrease in level of tonnage, based on statistical significance testing at the 95% confidence level.

3 NEC = not elsewhere classified.

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, 2007 Commodity Flow Survey, preliminary data table 6, December 2008.