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Table B–18 - Estimated Measures of Reliability for Shipment Characteristics by Two-Digit Commodity and Shipment Size for State of Origin: 2002

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

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All Commodities

Shipment Weight 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 shipment sizes 8.5 – 5.1 – 6.6 – 8.0
Less than 50 lbs 10.5 1.3 10.7 – 12.0 – 8.1
50 to 99 lbs 15.2 0.4 20.1 – 19.0 – 11.6
100 to 499 lbs 13.8 1.0 11.0 – 20.0 0.2 20.8
500 to 749 lbs 12.6 0.2 14.8 – 33.4 0.2 21.0
750 to 999 lbs 9.8 0.2 11.9 – 11.5 – 10.1
1,000 to 9,999 lbs 12.0 1.8 7.2 0.5 9.3 0.9 11.4
10,000 to 49,999 lbs 13.4 3.1 11.3 3.7 5.7 1.8 10.9
50,000 to 99,999 lbs 10.0 0.5 14.3 2.9 18.7 1.5 11.7
100,000 lbs or more 24.2 0.6 13.6 3.8 12.3 3.1 20.3

SCTG 1, Live animals and live fish

Shipment Weight 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 shipment sizes S S S S S S 31.6
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs S S S S S S 31.6
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

SCTG 2, Cereal grains

Shipment Weight 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 shipment sizes S S S S S S 35.7
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 37.4
10,000 to 49,999 lbs S S S S 42.4 7.0 42.4
50,000 to 99,999 lbs 48.2 11.7 48.4 10.7 S S 25.4
100,000 lbs or more S S S S S S 24.8

SCTG 3, Other agricultural products

Shipment Weight 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 shipment sizes 33.9 – 36.5 – 42.2 – S
Less than 50 lbs S S S S S S 31.1
50 to 99 lbs S S S S S S 30.4
100 to 499 lbs S S S S S S S
500 to 749 lbs S S S S S S S
750 to 999 lbs S S S S S S 41.7
1,000 to 9,999 lbs 36.9 1.7 41.0 3.0 S S 30.4
10,000 to 49,999 lbs 14.5 12.2 35.1 8.7 41.1 11.2 24.3
50,000 to 99,999 lbs S S S S 44.2 2.4 S
100,000 lbs or more S S S S S S 29.9

SCTG 4, Animal feed and products of animal origin, nec

Shipment Weight 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 shipment sizes 35.1 – 37.4 – 39.7 – 43.3
Less than 50 lbs S S S S S S 31.6
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs 35.6 1.2 40.8 0.4 41.6 – 30.7
500 to 749 lbs S S S S S S 29.9
750 to 999 lbs S S S S S S 30.4
1,000 to 9,999 lbs 45.3 8.5 S S 49.4 10.7 37.0
10,000 to 49,999 lbs 42.4 13.1 43.2 12.2 44.0 12.4 S
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more – – – – – – –

SCTG 5, Meat, fish, seafood, and their preparations

Shipment Weight 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 shipment sizes 28.9 – 38.9 – 46.9 – S
Less than 50 lbs S S S S 44.7 – S
50 to 99 lbs S S 46.9 0.2 48.3 – S
100 to 499 lbs S S 33.3 1.2 39.1 0.4 S
500 to 749 lbs S S 41.3 1.2 49.0 0.2 39.3
750 to 999 lbs 37.5 0.5 38.1 0.4 S S 27.6
1,000 to 9,999 lbs 29.3 7.3 32.4 8.3 39.2 9.2 24.3
10,000 to 49,999 lbs 31.6 9.3 37.6 8.7 46.1 8.3 32.5
50,000 to 99,999 lbs S S S S S S 28.8
100,000 lbs or more – – – – – – –

SCTG 6, Milled grain products and preparations, and bakery products

Shipment Weight 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 shipment sizes 29.4 – 42.9 – S S S
Less than 50 lbs 33.9 0.6 48.0 – 45.3 – S
50 to 99 lbs 39.4 0.3 41.2 – S S 29.2
100 to 499 lbs 41.5 3.5 S S 35.6 3.1 35.6
500 to 749 lbs S S S S 49.0 0.1 27.5
750 to 999 lbs S S S S S S 35.6
1,000 to 9,999 lbs 35.3 10.8 42.4 10.9 S S 23.0
10,000 to 49,999 lbs 30.8 13.9 43.9 13.6 S S 19.1
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

SCTG 7, Other prepared foodstuffs and fats and oils

Shipment Weight 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 shipment sizes 21.6 – 15.0 – 22.7 – 24.8
Less than 50 lbs S S S S S S 27.3
50 to 99 lbs S S S S S S S
100 to 499 lbs S S 49.4 0.3 48.8 0.3 34.0
500 to 749 lbs 49.6 0.3 S S 44.3 – 27.3
750 to 999 lbs S S S S S S 34.4
1,000 to 9,999 lbs S S 40.3 3.3 46.5 5.0 31.0
10,000 to 49,999 lbs 26.1 5.9 12.6 5.3 23.0 7.5 19.3
50,000 to 99,999 lbs 31.7 4.3 37.6 4.4 S S S
100,000 lbs or more S S S S S S 30.6

SCTG 8, Alcoholic beverages

Shipment Weight 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 shipment sizes 26.6 – 30.5 – 37.3 – 37.9
Less than 50 lbs 48.5 0.1 48.6 0.1 S S 34.0
50 to 99 lbs S S 49.5 0.3 48.9 0.3 33.4
100 to 499 lbs S S 45.7 2.5 S S S
500 to 749 lbs S S S S S S S
750 to 999 lbs 48.0 0.8 49.1 0.9 S S 34.4
1,000 to 9,999 lbs 39.7 6.5 36.4 7.7 S S 47.0
10,000 to 49,999 lbs 35.5 9.6 33.8 10.8 39.6 10.3 S
50,000 to 99,999 lbs S S S S S S 30.7
100,000 lbs or more S S S S S S 28.1

SCTG 9, Tobacco products

Shipment Weight 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 shipment sizes S S 38.9 – S S S
Less than 50 lbs S S S S S S S
50 to 99 lbs S S 45.4 – 39.0 – S
100 to 499 lbs 41.5 2.5 33.1 2.5 17.8 2.4 S
500 to 749 lbs S S S S 47.6 2.0 S
750 to 999 lbs S S S S S S 26.5
1,000 to 9,999 lbs 44.7 10.7 28.0 7.2 46.4 6.4 39.3
10,000 to 49,999 lbs S S 35.2 12.9 S S S
50,000 to 99,999 lbs S S S S S S 30.3
100,000 lbs or more S S S S S S 31.6

SCTG 10, Monumental or building stone

Shipment Weight 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 shipment sizes S S S S S S 30.9
Less than 50 lbs S S S S S S 31.0
50 to 99 lbs S S S S S S 30.5
100 to 499 lbs S S S S S S 30.5
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 31.6
10,000 to 49,999 lbs S S S S S S 31.5
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more S S S S S S 31.6

SCTG 11, Natural sands

Shipment Weight 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 shipment sizes 36.4 – 33.7 – 46.0 – 17.5
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs 42.7 1.8 35.0 1.6 33.3 0.3 46.0
10,000 to 49,999 lbs 47.5 10.1 36.0 6.1 29.0 16.8 41.9
50,000 to 99,999 lbs 44.8 2.4 36.2 2.2 S S 29.8
100,000 lbs or more S S 48.1 6.2 S S 30.8

SCTG 12, Gravel and crushed stone

Shipment Weight 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 shipment sizes 12.4 – 18.6 – 16.6 – 14.7
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs S S S S S S 30.8
1,000 to 9,999 lbs 28.4 0.4 25.9 – 35.6 – 18.8
10,000 to 49,999 lbs 13.8 5.8 18.1 6.1 17.3 8.9 14.2
50,000 to 99,999 lbs 31.0 3.4 37.7 4.4 44.1 5.9 27.7
100,000 lbs or more 42.6 5.4 46.4 6.0 S S S

SCTG 13, Nonmetallic minerals nec

Shipment Weight 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 shipment sizes 37.3 – S S 49.4 – S
Less than 50 lbs S S S S S S 30.0
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs S S S S S S S
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S 46.0 5.1 46.4
10,000 to 49,999 lbs 45.4 10.1 S S 48.8 9.3 S
50,000 to 99,999 lbs S S S S S S 32.0
100,000 lbs or more S S S S S S 44.8

SCTG 14, Metallic ores and concentrates

Shipment Weight 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 shipment sizes S S S S S S 26.6
Less than 50 lbs – – – – – – –
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 29.8
10,000 to 49,999 lbs S S S S S S S
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 30.1

SCTG 15, Coal

Shipment Weight 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 shipment sizes 19.2 – 20.7 – 16.7 – S
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S