Bureau of Transportation Statistics (BTS)
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Table A7: Estimates of Annual Domestic Commodity Inflows to Washington

Excluding energy1

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Commodity Observed
inflows
(000s of metric tons)
Estimated
inflows
(000s of metric tons)
Percentage
error
Distance
ratio2
Apparel or other finished textile products 64 98 53.7 1.5
Chemicals or allied products 1,146 1,612 40.6 1.4
Clay, concrete, glass, or stone products 991 687 -30.8 0.8
Electrical machinery, equipment, or supplies 160 227 41.9 2.1
Fabricated metal products 319 417 30.5 1.8
Farm products 12,771 11,207 -12.3 1.6
Food or kindred products 3,871 3,778 -2.4 1.9
Forest and fishing products 1 2 27.3 N/A
Furniture or fixtures 125 123 -1.3 1.4
Instruments, photographic goods, optical goods, watches, or clocks 10 56 480.7 1.8
Leather or leather products 7 15 113.0 1.5
Lumber or wood products, excluding furniture 1,940 1,112 -42.7 0.6
Machinery, excluding electrical 239 229 -4.1 2.1
Miscellaneous products or manufacturing 52 92 78.4 1.3
Primary metal products 586 920 57.0 1.8
Pulp, paper, or allied products 519 1,010 94.8 2.5
Rubber or miscellaneous plastics products 163 317 94.4 1.4
Textile mill products 67 101 50.5 1.5
Transportation equipment 325 624 91.8 1.8
Waste or scrap materials 214 61 -71.5 0.7
Total, all commodities 23,569 22,686 -3.7 1.5
Weighted average error: 21.3%
Mean absolute error: 71.0%

1 Energy commodities include mining, petroleum, and coal products.

2 Distance ratio is the average shipment distance for the commodity to the state divided by the national average.

Key: N/A = not applicable.

Note: Observed inflows are obtained from the 1993 Commodity Flow survey. Estimates are derived from the inflows to the the two-state West Coast Region (California and Washington).