Table 3. Shipment Characteristics by Mode of Transportation and Distance Shipped for State of Origin: 2007

Table 3. Shipment Characteristics by Mode of Transportation and Distance Shipped for State of Origin: 2007

Estimates are based on the 2007 Commodity Flow Survey. Because of rounding, estimates may not be additive.

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All modes

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 1,166,608 100 1,338,753 100 252,819 100 5.3 - 4.7 - 5.1 -
Less than 50 miles 497,009 42.6 858,218 64.1 17,578 7 6.6 1.6 5.6 1.2 5.3 0.3
50 - 99 miles 84,998 7.3 118,462 8.8 10,430 4.1 7.3 0.6 11.6 1 11.6 0.5
100 - 249 miles 163,337 14 165,079 12.3 35,764 14.1 10.3 0.7 9.8 0.8 9.7 1.2
250 - 499 miles 119,394 10.2 76,798 5.7 32,320 12.8 9 0.8 9.2 0.7 7.6 1.4
500 - 749 miles 64,440 5.5 32,973 2.5 27,221 10.8 9.8 0.5 12.9 0.3 14.8 1.3
750 - 999 miles 84,149 7.2 40,775 3 47,533 18.8 7.5 0.3 14 0.4 13.8 1.8
1,000 - 1,499 miles 125,712 10.8 39,405 2.9 64,229 25.4 8.9 1 4 0.2 4.4 1
1,500 - 2,000 miles 24,662 2.1 6,756 0.5 16,811 6.6 7.6 0.2 9.7 0.1 13.8 1
More than 2,000 miles 2,906 0.2 287 - 931 0.4 23.3 0.1 28.4 - 21.6 0.1

Single modes

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 974,047 100 1,215,296 100 210,701 100 4.9 - 4.5 - 4.9 -
Less than 50 miles 441,397 45.3 803,789 66.1 16,048 7.6 6.2 1.9 5.5 1.3 4.8 0.3
50 - 99 miles 72,194 7.4 103,322 8.5 8,663 4.1 7 0.7 12.3 1 11.6 0.5
100 - 249 miles 135,433 13.9 137,256 11.3 28,786 13.7 11.8 1.2 11.3 1 12 1.4
250 - 499 miles 101,567 10.4 70,225 5.8 29,495 14 10.3 1 10 0.8 8.5 1.6
500 - 749 miles 50,592 5.2 26,858 2.2 20,820 9.9 11.2 0.5 13.2 0.2 12.1 0.9
750 - 999 miles 63,765 6.5 34,909 2.9 39,387 18.7 9.9 0.3 14.5 0.4 14.4 2.1
1,000 - 1,499 miles 89,546 9.2 32,905 2.7 52,311 24.8 11.6 0.9 5.6 0.1 6 0.7
1,500 - 2,000 miles 18,275 1.9 5,958 0.5 14,932 7.1 9.5 0.2 11.3 0.1 16.2 1.2
More than 2,000 miles S S 76 - 258 0.1 S S 34 - 35.3 -

Truck3

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 692,717 100 765,518 100 110,160 100 5.9 - 4.7 - 3.8 -
Less than 50 miles 285,870 41.3 519,625 67.9 11,639 10.6 5 1.9 5.8 1.2 5.4 0.7
50 - 99 miles 52,282 7.5 74,319 9.7 6,619 6 5.7 0.3 8 0.6 7.8 0.5
100 - 249 miles 118,544 17.1 85,232 11.1 18,091 16.4 12.7 1.2 4.8 0.7 4.7 1
250 - 499 miles 75,076 10.8 37,853 4.9 16,535 15 14.2 1 5.6 0.2 5.7 0.6
500 - 749 miles 38,295 5.5 12,912 1.7 10,197 9.3 15.8 0.7 9.2 0.1 9.1 0.7
750 - 999 miles 46,577 6.7 16,633 2.2 17,658 16 8.9 0.3 15.5 0.4 15.2 1.8
1,000 - 1,499 miles 64,257 9.3 16,109 2.1 23,625 21.4 14.1 1 5.7 0.2 6 1.2
1,500 - 2,000 miles 11,448 1.7 2,783 0.4 5,671 5.1 11.6 0.2 11.2 0.1 11.5 0.6
More than 2,000 miles 367 0.1 53 - 126 0.1 45.8 - 46.1 - 45.5 -

For-hire truck

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 394,737 100 335,829 100 85,250 100 7.6 - 6.7 - 4.9 -
Less than 50 miles 103,509 26.2 188,134 56 4,397 5.2 10.8 1.9 10.8 2.9 11.4 0.7
50 - 99 miles 21,602 5.5 31,821 9.5 2,826 3.3 7 0.4 7.9 0.8 8 0.3
100 - 249 miles 55,463 14.1 41,149 12.3 8,939 10.5 12.4 0.9 5.5 1 4.9 0.6
250 - 499 miles 54,866 13.9 26,609 7.9 12,223 14.3 11.1 1.1 6.5 0.6 6.5 0.9
500 - 749 miles 37,889 9.6 12,778 3.8 10,100 11.8 16 1.1 9.3 0.4 9.2 0.9
750 - 999 miles 46,133 11.7 16,535 4.9 17,552 20.6 9 0.6 15.6 0.9 15.3 2
1,000 - 1,499 miles 63,489 16.1 15,978 4.8 23,435 27.5 14.4 1.6 5.7 0.3 5.9 1.3
1,500 - 2,000 miles 11,419 2.9 2,773 0.8 5,652 6.6 11.6 0.3 11.4 0.1 11.6 0.8
More than 2,000 miles 367 0.1 53 - 126 0.1 45.8 - 46.1 - 45.5 0.1

Private truck

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 297,980 100 429,689 100 24,910 100 6.8 - 8 - 6.6 -
Less than 50 miles 182,362 61.2 331,491 77.1 7,241 29.1 5.2 3.5 8.1 0.9 8.4 1.6
50 - 99 miles 30,680 10.3 42,498 9.9 3,794 15.2 9.6 0.5 15.4 1 15.4 1.7
100 - 249 miles 63,081 21.2 44,083 10.3 9,152 36.7 19.9 2.4 8.8 0.8 9 2
250 - 499 miles 20,210 6.8 11,244 2.6 4,311 17.3 25.8 1.1 8.4 0.4 8.8 2
500 - 749 miles 406 0.1 134 - 97 0.4 20.8 - 25 - 23.3 0.1
750 - 999 miles 444 0.1 98 - 106 0.4 49.9 0.1 26.8 - 26.7 0.2
1,000 - 1,499 miles S S 132 - 190 0.8 S S 38.8 - 38.1 0.4
1,500 - 2,000 miles 29 - S S S S 42.5 - S S S S
More than 2,000 miles - - - - - - - - - - - -

Rail

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 75,871 100 153,046 100 70,343 100 12.9 - 19.7 - 12.3 -
Less than 50 miles 19,142 25.2 62,182 40.6 902 1.3 16.8 2 47.8 8.4 40.3 0.6
50 - 99 miles 5,570 7.3 9,489 6.2 880 1.3 42 2.1 49.7 3.1 49.4 0.6
100 - 249 miles 5,059 6.7 33,060 21.6 8,103 11.5 12.5 0.8 39.8 6.6 40.5 3.5
250 - 499 miles 7,829 10.3 9,734 6.4 4,877 6.9 29.5 1.7 16.7 2.8 17.6 1.3
500 - 749 miles 5,785 7.6 7,309 4.8 5,929 8.4 14.3 1.5 14 1.1 13 1.1
750 - 999 miles 11,494 15.1 12,570 8.2 15,234 21.7 18.7 1.8 19.1 2.1 19.3 2.1
1,000 - 1,499 miles 15,815 20.8 15,954 10.4 27,442 39 9.5 2.2 10.3 2.5 10.8 1.6
1,500 - 2,000 miles 5,176 6.8 2,746 1.8 6,973 9.9 27.4 1 18 0.5 18.5 1
More than 2,000 miles S S S S S S S S S S S S

Water

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 31,287 100 60,170 100 11,141 100 22.1 - 26.7 - 33 -
Less than 50 miles 25,496 81.5 52,311 86.9 840 7.5 25.2 6.5 28.6 5.1 48.7 9.3
50 - 99 miles S S S S S S S S S S S S
100 - 249 miles S S S S S S S S S S S S
250 - 499 miles S S S S S S S S S S S S
500 - 749 miles 1,370 4.4 2,042 3.4 S S 46.1 13.7 43.6 9.2 S S
750 - 999 miles 3,138 10 4,520 7.5 5,419 48.6 40.4 8.2 39.3 6.6 44.6 14.7
1,000 - 1,499 miles 357 1.1 173 0.3 343 3.1 41.1 1.1 44 0.5 36.6 10
1,500 - 2,000 miles S S S S S S S S S S S S
More than 2,000 miles 12 - S S S S 40.3 0.1 S S S S

Shallow draft

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 24,402 100 49,349 100 1,841 100 28.7 - 32.9 - 49.4 -
Less than 50 miles 23,574 96.6 48,207 97.7 S S 26.9 1.1 31.2 0.8 S S
50 - 99 miles - - - - - - - - - - - -
100 - 249 miles S S S S S S S S S S S S
250 - 499 miles S S S S S S S S S S S S
500 - 749 miles S S S S S S S S S S S S
750 - 999 miles S S S S S S S S S S S S
1,000 - 1,499 miles S S S S S S S S S S S S
1,500 - 2,000 miles - - - - - - - - - - - -
More than 2,000 miles - - - - - - - - - - - -

Deep draft

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 6,886 100 10,821 100 9,300 100 20.5 - 22.8 - 33.4 -
Less than 50 miles 1,922 27.9 4,105 37.9 69 0.7 41.1 13.5 44.2 13.5 44.2 6.4
50 - 99 miles S S S S S S S S S S S S
100 - 249 miles - - - - - - - - - - - -
250 - 499 miles - - - - - - - - - - - -
500 - 749 miles S S 1,649 15.2 S S S S 35.2 12.9 S S
750 - 999 miles 3,094 44.9 4,481 41.4 5,354 57.6 38.4 14.5 36.7 16.4 42.7 15.3
1,000 - 1,499 miles S S S S S S S S S S S S
1,500 - 2,000 miles S S S S S S S S S S S S
More than 2,000 miles 12 0.2 S S S S 40.3 0.2 S S S S

Air (incl truck and air)

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 22,015 100 220 100 323 100 34.1 - 40.3 - 45.2 -
Less than 50 miles 571 2.6 S S S S 45.8 1.7 S S S S
50 - 99 miles 15 0.1 S S S S 38.5 0.1 S S S S
100 - 249 miles 2,683 12.2 S S S S 48.9 3.9 S S S S
250 - 499 miles S S S S S S S S S S S S
500 - 749 miles 1,915 8.7 8 3.8 7 2 40.1 5 41.4 3.7 36.8 2.8
750 - 999 miles 1,961 8.9 7 3.3 8 2.4 34.3 2.1 11.9 2.1 16.9 1.5
1,000 - 1,499 miles 8,808 40 S S S S 36.1 4.3 S S S S
1,500 - 2,000 miles S S S S S S S S S S S S
More than 2,000 miles S S 10 4.7 S S S S 47 1.2 S S

Pipeline4

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 152,157 100 236,342 100 S S 10.2 - 9.7 - S S
Less than 50 miles 110,318 72.5 169,668 71.8 S S 13 4.8 12.4 5.3 S S
50 - 99 miles 14,161 9.3 19,474 8.2 S S 31.6 3.5 32.7 2.8 S S
100 - 249 miles 9,036 5.9 18,796 8 S S 43.4 3.3 47.8 5.2 S S
250 - 499 miles 14,509 9.5 22,089 9.3 S S 25.3 4.1 25.6 3.7 S S
500 - 749 miles S S S S S S S S S S S S
750 - 999 miles S S S S S S S S S S S S
1,000 - 1,499 miles 307 0.2 547 0.2 S S 34.4 0.3 35.9 0.3 S S
1,500 - 2,000 miles S S S S S S S S S S S S
More than 2,000 miles - - - - - - - - - - - -

Multiple modes

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 155,352 100 87,550 100 39,329 100 4.6 - 15.8 - 11.1 -
Less than 50 miles 24,389 15.7 22,505 25.7 1,066 2.7 9.7 1.6 22.9 3.4 22.4 0.4
50 - 99 miles 12,033 7.7 13,838 15.8 1,671 4.2 33 2.2 35.5 4.5 36.3 1.3
100 - 249 miles 26,914 17.3 27,082 30.9 6,816 17.3 8.2 1 24.9 3.6 25.4 2.7
250 - 499 miles 16,346 10.5 5,930 6.8 2,548 6.5 14.4 1.1 30.3 2.8 26.5 2
500 - 749 miles 13,240 8.5 5,761 6.6 6,117 15.6 13.4 1 30.7 2.2 40.3 5
750 - 999 miles 19,496 12.5 5,642 6.4 7,895 20.1 6.3 0.9 24.1 1 28.1 3.7
1,000 - 1,499 miles 35,209 22.7 5,875 6.7 10,857 27.6 10.5 2.2 21.8 2 24.3 6.1
1,500 - 2,000 miles 6,106 3.9 706 0.8 1,687 4.3 10.2 0.4 20.9 0.3 20.6 1.3
More than 2,000 miles 1,620 1 211 0.2 671 1.7 28.2 0.3 31.8 0.1 25.1 0.4

Parcel, U.S.P.S. or courier

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 104,632 100 2,453 100 1,843 100 6.6 - 7.1 - 11.8 -
Less than 50 miles 13,782 13.2 413 16.8 14 0.7 5.9 1.2 12.6 2.1 13 0.1
50 - 99 miles 2,680 2.6 84 3.4 8 0.4 13.5 0.3 18.5 0.6 17.3 0.1
100 - 249 miles 14,708 14.1 373 15.2 87 4.7 11.4 1.1 10.1 1.4 10.4 0.8
250 - 499 miles 13,183 12.6 352 14.4 150 8.2 13.7 1.3 11.5 1.4 12.8 1.6
500 - 749 miles 10,156 9.7 242 9.9 189 10.3 13 1 9.7 0.6 9.4 0.5
750 - 999 miles 15,062 14.4 335 13.7 356 19.3 8.5 1.1 17.2 1.6 16.7 1.8
1,000 - 1,499 miles 29,027 27.7 526 21.5 776 42.1 12.9 2.1 16.7 2.7 16.6 2.8
1,500 - 2,000 miles 5,436 5.2 119 4.9 238 12.9 10.3 0.4 18.7 0.6 17.5 1
More than 2,000 miles 597 0.6 8 0.3 26 1.4 20.1 0.1 21.5 0.1 28.5 0.4

Truck and rail

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 14,494 100 17,263 100 13,775 100 7.3 - 11 - 9.3 -
Less than 50 miles 2,261 15.6 4,009 23.2 199 1.4 34 5.5 36 6.3 35.4 0.6
50 - 99 miles S S S S S S S S S S S S
100 - 249 miles 1,607 11.1 3,895 22.6 1,025 7.4 15.9 2 22.7 4.5 22.5 2.2
250 - 499 miles 887 6.1 937 5.4 505 3.7 32.7 2 19.2 1.5 20.7 0.7
500 - 749 miles 1,086 7.5 1,607 9.3 1,387 10.1 23.2 1.1 19.2 1.8 18.2 1.5
750 - 999 miles 2,073 14.3 1,888 10.9 2,315 16.8 19.1 2.3 18.5 1.3 17.1 2
1,000 - 1,499 miles 4,934 34 3,881 22.5 6,466 46.9 12.4 4.3 13.3 3.9 12.7 4
1,500 - 2,000 miles 633 4.4 563 3.3 1,375 10 29.5 1.4 25.2 0.8 24.2 1.9
More than 2,000 miles 949 6.5 181 1 473 3.4 30.4 4.7 21.5 1 23.9 2.5

Truck and water

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 7,466 100 17,923 100 4,259 100 24.7 - 29.7 - 25 -
Less than 50 miles 2,557 34.2 4,890 27.3 283 6.6 32.9 12.6 37.7 11.2 38.6 5.5
50 - 99 miles S S S S S S S S S S S S
100 - 249 miles S S S S 2,244 52.7 S S S S 47.9 14.6
250 - 499 miles 242 3.2 S S S S 46.4 1.8 S S S S
500 - 749 miles 234 3.1 S S S S 48 6.2 S S S S
750 - 999 miles 214 2.9 S S S S 49.2 7.9 S S S S
1,000 - 1,499 miles S S 126 0.7 549 12.9 S S 30.4 11.4 34.1 10.3
1,500 - 2,000 miles 18 0.2 11 0.1 42 1 29.4 2.2 46 1 23.3 5.3
More than 2,000 miles 72 1 20 0.1 159 3.7 38.1 1.2 34.1 1.8 33.8 2.9

Rail and water

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 7,448 100 15,217 100 9,546 100 13.5 - 32 - 33.5 -
Less than 50 miles 1,557 20.9 S S S S 47.3 20 S S S S
50 - 99 miles 1,170 15.7 1,845 12.1 252 2.6 33 9.6 46.2 14.8 46.8 4.8
100 - 249 miles 1,657 22.2 S S S S 29.3 15.2 S S S S
250 - 499 miles S S S S S S S S S S S S
500 - 749 miles 862 11.6 S S S S 35.5 8.1 S S S S
750 - 999 miles 469 6.3 1,012 6.6 1,404 14.7 34.8 4.7 37.7 7.2 38.3 14.1
1,000 - 1,499 miles S S S S S S S S S S S S
1,500 - 2,000 miles - - - - - - - - - - - -
More than 2,000 miles - - - - - - - - - - - -

Other multiple modes

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 21,312 100 34,694 100 9,906 100 22.7 - 20.8 - 32.4 -
Less than 50 miles 4,232 19.9 9,783 28.2 437 4.4 21.8 5.5 23.9 5.5 31.7 2
50 - 99 miles S S S S S S S S S S S S
100 - 249 miles 6,460 30.3 9,435 27.2 2,200 22.2 25.8 8.7 25.3 7.1 26 7.8
250 - 499 miles 1,214 5.7 3,021 8.7 1,174 11.8 30.2 3.7 35.3 6.2 36.8 7.9
500 - 749 miles 901 4.2 1,163 3.4 S S 44.4 5.2 48.5 4.3 S S
750 - 999 miles S S 2,282 6.6 S S S S 46.8 5.1 S S
1,000 - 1,499 miles 100 0.5 S S S S 34.8 0.2 S S S S
1,500 - 2,000 miles S S S S S S S S S S S S
More than 2,000 miles S S S S S S S S S S S S

Other and unknown modes

Distance Shipped Value Tons Ton-miles1 Value Tons Ton-miles
2007
(million $)
Percent 2007
(thousands)
Percent 2007
(millions)
Percent CV2 Standard
Error of %
CV Standard
Error of %
CV Standard
Error of %
Total 37,209 100 35,907 100 2,790 100 49.5 - 22.5 - 24.6 -
Less than 50 miles S S 31,924 88.9 464 16.6 S S 24.4 3.3 25.6 4.9
50 - 99 miles 771 2.1 S S 96 3.4 24.8 1.2 S S 42.9 2.8
100 - 249 miles 991 2.7 741 2.1 162 5.8 25.1 1.3 23.4 0.6 24.1 1.6
250 - 499 miles 1,481 4 643 1.8 277 9.9 28.7 2.5 26 0.5 23.7 2.9
500 - 749 miles 609 1.6 354 1 285 10.2 21.8 1.1 30.8 0.4 29.5 3.1
750 - 999 miles 888 2.4 224 0.6 251 9 35.7 0.6 34.3 0.2 34.3 2.2
1,000 - 1,499 miles 958 2.6 625 1.7 S S 25.2 2 47.8 1 S S
1,500 - 2,000 miles 281 0.8 92 0.3 192 6.9 39.4 0.8 34.6 0.1 35.8 2.1
More than 2,000 miles 9 - 1 - 2 0.1 39 0.2 15.5 - 37.1 0.3

KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality. - = Zero or Less than half the unit shown; thus, it has been rounded to zero.

1 Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.
2 Coefficient of Variation.
3 "Truck" as a single mode includes shipments that were made by only private truck, only for-hire truck, or a combination of private truck and for-hire truck.
4 Estimates for pipeline exclude shipments of crude petroleum.

NOTES: Rows are not shown if all cells for that particular state by mode have no data. For example, since Wyoming by "Water" has no data for any mileage grouping, the entire mode of "Water" for that state was removed from this table. However, if a state by mode has at least one row of data for one of the mileage groupings, then the entire state by mode is shown even though there may be rows absent of data within that mode. For example, West Virginia by "Water" has a few rows absent of data but since the other rows within that mode do have data, that state by mode will be shown in its entirety for all the mileage groupings. Value-of-shipments estimates have not been adjusted for price changes. Estimated measures of sampling variability for each estimate known as coefficients of variation (CV) are also provided in these tables. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/publications/commodity_flow_survey/.

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census: Transportation Commodity Flow Survey, December 2009.