90-Percent Confidence Intervals for 1993 Commodity Flow Survey State Summary: Iowa
Tuesday, July 3, 2012
90-Percent Confidence Intervals for 1993 Commodity Flow Survey State Summary: Iowa
Tabulation by the Bureau of Transportation Statistics, U.S. Department of Transportation
| Summary | Value | Weight |
|---|---|---|
| Total shipments originating in Iowa (in billion $ and million tons) | 77.40 - 82.40 | 151.51 - 177.49 |
| Percent of total U.S. shipments (preliminary U.S. estimate) | 1.27 - 1.37 | 1.53 - 1.80 |
Commodity Shipments Originating in Iowa Ranked by Value
| Commodity | Percent of value |
|---|---|
| Food or kindred products | 28.9 - 34.6 |
| Farm products | 7.3 - 13.4 |
| Machinery, including computers | 8.0 - 10.1 |
| Chemicals or allied products | 6.0 - 10.8 |
| Electrical machinery, equipment, or supplies . | 4.4 - 6.1 |
| Other commodities | (NA) |
| Total | (X) |
Commodity Shipments Originating in Iowa Ranked by Weight
| Commodity | Percent of weight |
|---|---|
| Farm products | 22.0 - 44.1 |
| Food or kindred products | 20.5 - 27.8 |
| Nonmetallic minerals | 12.9 - 17.3 |
| Clay, concrete, glass, or stone products | 7.6 - 10.9 |
| Petroleum or coal products | 2.7 - 9.0 |
| Other commodities | (NA) |
| Total | (X) |
Domestic Destinations of Shipments Originating in Iowa Ranked by Value
| State | Percent of value |
|---|---|
| Iowa | 33.0 - 37.2 |
| Illinois | 9.0 - 11.3 |
| California | 3.4 - 4.8 |
| Nebraska | 3.1 - 4.7 |
| Minnesota | 3.2 - 4.2 |
| Missouri | 3.4 - 4.0 |
| Other States | (NA) |
| Total | (X) |
Domestic Destinations of Shipments Originating in Iowa Ranked by Weight
| State | Percent of weight |
|---|---|
| Iowa | 56.8 - 64.0 |
| Illinois | 5.5 - 8.8 |
| Minnesota | 2.7 - 5.0 |
| Nebraska | 1.5 - 5.1 |
| Missouri | 1.7 - 3.7 |
| Texas | 0.6 - 3.9 |
| Other States | (NA) |
| Total | (X) |
Modes of Transportation for Shipments Originating in Iowa
| Modes | Percent of value | Percent of weight |
|---|---|---|
| Parcel, U.S. Postal Service, or courier service | 6.0 - 8.3 | (X) |
| Truck (for-hire, private, and both private truck and for-hire truck) | 76.9 - 83.7 | 70.7 - 78.3 |
| Air (including truck and air) | (X) | (X) |
| Rail | 5.0 - 8.0 | 11.7 - 19.6 |
| Water (inland water, Great Lakes, deep sea, truck and water, and rail and water) | (X) | (X) |
| Pipeline* | (X) | (X) |
| Truck and rail intermodal combination | 0.1 - 0.7 | (X) |
| Other intermodal (truck and pipeline, inland and Gt. Lakes, inland and deep sea) | (X) | (X) |
| Other, unknown, and withheld for sampling and disclosure reasons | 5.0 - 6.4 | 8.4 - 11.0 |
| Total | (X) | (X) |
Domestic Distance Shipped for Commodities Originating in Iowa
| Distance | Percent of value | Percent of weight |
|---|---|---|
| Less than 50 miles | 20.2 - 24.8 | 40.2 - 50.0 |
| 50 to 99 miles | 9.2 - 10.8 | 10.8 - 17.0 |
| 100 to 249 miles | 20.6 - 24.2 | 13.2 - 18.2 |
| 250 to 499 miles | 14.1 - 15.7 | 5.8 - 10.8 |
| 500 to 749 miles | 8.3 - 10.3 | 2.8 - 4.2 |
| 750 to 999 miles | 8.2 - 11.8 | 4.3 - 14.1 |
| 1,000 to 1,499 miles | 6.2 - 8.5 | 1.5 - 4.5 |
| 1,500 to 1,999 miles | 2.6 - 4.9 | 0.8 - 1.4 |
| 2,000 miles or more | (X) | (X) |
| Total | (X) | (X) |
* CFS data for pipelines exclude most shipments of crude oil.
NA Not available.
X Not applicable.
NOTE: For explanation of 90-percent confidence intervals see Appendix B, "Reliability of the Data," in source document.
SOURCE: U.S. Department of Commerce, Bureau of the Census, 1992 Census of Transportation, Communications, and Utilities, 1993 Commodity Flow Survey, TC92-CF (Washington, DC: 1996).