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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 19.2 – 15.0 – 15.8 – 12.5
Less than 50 lbs 17.2 1.7 11.1 – 20.7 0.2 9.6
50 to 99 lbs 47.3 1.8 8.8 – 19.1 – 25.0
100 to 499 lbs 31.1 3.0 23.7 0.4 40.1 1.0 11.5
500 to 749 lbs S S 18.3 0.2 33.0 0.2 20.6
750 to 999 lbs 17.2 0.5 19.7 0.1 20.6 – 30.7
1,000 to 9,999 lbs 11.6 1.6 10.8 0.9 16.8 1.8 13.8
10,000 to 49,999 lbs 14.2 2.9 21.7 5.3 15.3 4.4 34.6
50,000 to 99,999 lbs 11.7 0.6 18.7 3.2 25.5 3.3 13.9
100,000 lbs or more 43.2 0.8 44.8 6.3 41.7 7.6 23.8

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 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 31.6
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 31.6
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 31.6
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 S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 31.6
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

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 S S S S S S 30.8
Less than 50 lbs S S S S S S 31.4
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 30.0
500 to 749 lbs S S S S S S 38.7
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs S S S S S S 31.4
10,000 to 49,999 lbs S S S S S S 31.2
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more – – – – – – –

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 27.2 – 35.2 – 40.4 – S
Less than 50 lbs S S S S S S 29.9
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 30.9
500 to 749 lbs S S S S S S 31.7
750 to 999 lbs S S S S S S 33.2
1,000 to 9,999 lbs 49.0 3.7 44.1 2.6 S S S
10,000 to 49,999 lbs 27.2 5.1 35.6 4.1 42.3 2.3 S
50,000 to 99,999 lbs S S S S 38.3 1.6 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 S S S S S S 30.9
Less than 50 lbs S S S S S S 34.4
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 29.9
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
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 25.9 – 39.8 – 41.8 – 23.0
Less than 50 lbs S S 36.1 10.6 S S 28.1
50 to 99 lbs S S S S S S 29.7
100 to 499 lbs 43.5 9.9 S S S S 22.7
500 to 749 lbs 46.2 1.2 S S S S 29.1
750 to 999 lbs S S S S S S 30.8
1,000 to 9,999 lbs S S S S S S 33.5
10,000 to 49,999 lbs 37.7 12.9 48.4 12.6 S S S
50,000 to 99,999 lbs S S S S S S 32.1
100,000 lbs or more S S S S S S 31.6

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 16.4 – 18.4 – 17.6 – 15.6
Less than 50 lbs 20.5 1.1 22.2 0.2 29.9 0.5 13.1
50 to 99 lbs 41.3 1.4 37.3 0.1 32.3 1.0 30.9
100 to 499 lbs 31.0 2.3 20.7 1.8 29.9 1.2 35.7
500 to 749 lbs 39.0 1.1 38.7 1.4 S S S
750 to 999 lbs 47.2 0.9 37.1 1.0 44.9 0.4 39.8
1,000 to 9,999 lbs 33.1 4.2 35.7 5.7 46.2 3.7 37.3
10,000 to 49,999 lbs 14.6 5.5 17.3 7.2 16.9 7.3 35.2
50,000 to 99,999 lbs 45.5 3.0 44.2 10.3 43.2 8.1 26.1
100,000 lbs or more – – – – – – –

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 27.8 – 29.5 – 36.3 – 9.1
Less than 50 lbs S S S S S S 20.0
50 to 99 lbs S S S S S S 18.5
100 to 499 lbs S S S S S S 6.9
500 to 749 lbs 29.0 2.2 25.6 2.0 25.7 3.6 9.2
750 to 999 lbs 36.9 1.2 37.8 1.4 41.3 1.2 20.7
1,000 to 9,999 lbs 21.2 8.0 24.9 7.6 33.8 11.1 24.2
10,000 to 49,999 lbs 48.0 5.9 S S S S 28.9
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more – – – – – – –

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 S S S S 31.6
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 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 S S S S S S 31.6
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 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 28.0
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 S S S S S S 30.6
500 to 749 lbs S S S S S S 29.8
750 to 999 lbs S S S S S S 30.0
1,000 to 9,999 lbs S S S S S S 31.0
10,000 to 49,999 lbs S S S S S S 28.2
50,000 to 99,999 lbs – – – – – – –
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 S S S S S S 28.2
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 S S S S S S 30.0
10,000 to 49,999 lbs S S S S S S 28.8
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 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 36.2 – 31.3 – 35.6 – S
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs S S S S S S 31.6
1,000 to 9,999 lbs 48.1 0.3 S S S S S
10,000 to 49,999 lbs 34.4 7.7 38.3 8.7 36.6 8.5 S
50,000 to 99,999 lbs S S S S S S 29.6
100,000 lbs or more 45.4 7.9 33.8 8.6 42.5 9.3 24.9

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 S S S S S S S
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 S S S S S S 30.3
10,000 to 49,999 lbs S S S S S S 32.1
50,000 to 99,999 lbs S S S S S S S
100,000 lbs or more – – – – – – –

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 47.0
Less than 50 lbs S S S S S S 31.6
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 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 S S S S S S 30.0
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 S