Table A2.  U.S. Per Household Vehicle-Miles Traveled, Vehicle Fuel Consumption and Expenditures, 2001
2001 Household Characteristics	Number of Households with Vehicles (million)	Average per Household with Vehicles
		Number of Vehicles	Vehicle-Miles Traveled (thousands)	Consumption (gallons)	Expenditures (dollars)
Total.............................................................	98.9	1.9	23.1	1,143	1,520
Census Region and Division
Northeast.......................................................	17.7	1.8	21.4	1,027	1,373
New England................................................	5.4	1.9	22.6	1,086	1,500
Middle Atlantic .............................................	12.3	1.8	20.8	1,001	1,317
Midwest ........................................................	23.6	2.0	23.7	1,176	1,585
East North Central........................................	16.3	2.0	23.6	1,164	1,577
West North Central ......................................	7.3	2.0	24.0	1,205	1,603
South............................................................	36.2	1.9	24.1	1,193	1,504
South Atlantic...............................................	20.4	1.9	23.6	1,146	1,436
East South Central........................................	5.7	2.1	25.1	1,273	1,632
West South Central.......................................	10.1	2.0	24.5	1,244	1,564
West..............................................................	21.4	2.0	22.3	1,119	1,592
Mountain .....................................................	6.1	2.0	22.6	1,194	1,656
Pacific .........................................................	15.4	1.9	22.1	1,090	1,558
Urban Status
Urban ...........................................................	77.6	1.8	21.6	1,054	1,405
Rural ............................................................	21.3	2.2	28.7	1,469	1,934
Household Size
1 Person .......................................................	22.4	1.2	11.3	550	732
2 Persons ......................................................	33.4	2.0	21.6	1,091	1,443
3 Persons ......................................................	17.2	2.2	28.6	1,391	1,849
4 Persons.......................................................	16.0	2.3	30.9	1,519	2,025
5 Persons.......................................................	6.7	2.4	31.9	1,567	2,090
6 or More Persons ..........................................	3.2	2.5	34.4	1,762	2,313
Household Composition (EIA)1
Households With Children................................	37.1	2.2	29.2	1,429	1,903
Age of Oldest Child
Under 7 Years..............................................	10.2	2.0	26.8	1,307	1,735
7 to 15 Years................................................	19.8	2.1	28.4	1,403	1,869
16 to 17 Years..............................................	7.1	2.6	34.0	1,676	2,239
Households Without Children............................	61.7	1.8	19.6	972	1,241
One Adult......................................................	22.4	1.2	12.0	550	731
Age of Householder
Under 35 Years............................................	3.3	1.1	14.4	679	909
35 to 59 Years.............................................	9.0	1.3	13.6	667	889
60 Years or More.........................................	10.0	1.1	8.0	401	530
Two or More Adults........................................	39.3	2.2	24.8	1,212	1,612
Age of Householder
Under 35 Years............................................	6.5	2.1	28.0	1,297	1,738
35 to 59 Years.............................................	17.3	2.4	28.0	1,400	1,855
60 Years or More.........................................	15.4	2.0	18.4	966	1,286
Household Composition (NHTS)2
One adult, no children ....................................	13.7	1.2	13.3	634	839
2+ adults, no children ....................................	20.1	2.2	27.1	1,334	1,761
One adult, youngest child 0-5 ..........................	1.5	1.2	16.7	733	1,000
2+ adults, youngest child 0-5 ..........................	15.1	2.1	28.7	1,410	1,880
One adult, youngest child 6-15 ........................	2.6	1.3	18.1	827	1,115
2+ adults, youngest child 6-15 ........................	15.0	2.3	31.7	1,580	2,107
One adult, youngest child 16-21 ......................	0.9	1.9	24.4	1,082	1,444
2+ adults, youngest child 16-21 ......................	5.1	2.9	36.5	1,801	2,353
One adult, retired, no children .........................	8.3	1.1	7.8	395	518
2+ adults, retired, no children .........................	16.6	2.0	18.5	964	1,283
Race of Householder
White.............................................................	75.8	2.0	23.4	1,170	1,554
Black ............................................................	9.7	1.7	20.6	968	1,258
Other ............................................................	13.4	1.9	23.4	1,121	1,507
Hispanic Descent
Yes ...............................................................	8.3	1.8	23.4	1,127	1,506
No.................................................................	90.6	1.9	23.1	1,145	1,520
Family Income
Less than $5,000............................................	1.7	1.4	13.5	620	824
$5,000 to $9,999............................................	4.1	1.4	13.4	647	854
$10,000 to $14,999 ........................................	4.7	1.4	13.2	644	851
$15,000 to $19,999 ........................................	6.3	1.5	16.2	788	1,032
$20,000 to $24,999 ........................................	5.6	1.6	16.6	794	1,054
$25,000 to $34,999.........................................	13.3	1.7	19.3	940	1,248
$35,000 to $49,999.........................................	18.9	2.0	23.8	1,183	1,566
$50,000 to $74,999 ........................................	17.2	2.1	28.3	1,393	1,855
$75,000 or More ............................................	20.6	2.5	31.9	1,549	2,141
Don't Know....................................................	6.5	1.5	15.4	957	1,031
Income Relative to Poverty Line
Below 100 Percent..........................................	7.9	1.4	14.7	942	937
100 to 150 Percent .........................................	6.7	1.6	17.9	1,363	1,134
Above 150 Percent .........................................	77.8	2.0	24.8	1,546	1,631
Don't Know....................................................	6.5	1.8	18.9	957	1,277
Number of Drivers
1...................................................................	31.7	1.2	12.0	590	767
2...................................................................	52.6	2.1	25.5	1,281	1,703
3...................................................................	11.1	2.9	36.7	1,775	2,354
4 or More ......................................................	3.2	3.6	49.7	2,086	3,166
1 = "Household Composition (EIA)" represents an equivalent category with previous household transportation studies conducted by the Energy Information Administration (EIA).
2 = "Household Composition (NHTS)" represents an equivalent category in the National Household Travel Survey (NHTS) conducted by the U.S. Department of Transportation.
# underlined = Estimate, when rounded, displays as a zero value.
# in red, italic format = Data withheld either because the relative standard error was greater than 50 percent or fewer than 10 reporting units were sampled.
Notes: ▪ "Gallons" and "Miles Per Gallon" are displayed in Gallon of Gasoline Equivalent (GGE) units due to the non-gasoline and diesel vehicles in the augmented NHTS data.  ▪ Data in this table are for households with passenger vehicles operated for residential transportation.  ▪ See glossary for definitions used in this table.  ▪ "Income Relative to Poverty Line" category was calculated by evaluating the categorical average of household with Poverty Thresholds for 2001 by Size of Family and Number of Related Children Under 18 Years (http://www.census.gov/hhes/poverty/threshld.html), as published by the U.S. Department of Commerce, U.S. Census Bureau.  ▪ Because of independent rounding, data may not sum to totals.  ▪ "Householder" is defined as the person identified as the household respondent by the NHTS.
Sources: ▪ Energy Information Administration (EIA), Office of Oil and Gas, Form EIA-782A, "Refiners'/Gas Plant Operators' Monthly Petroleum Product Sales Report," Form EIA-782B, "Resellers'/Retailers' Monthly Petroleum Product Sales Report," Form EIA-888, "On-Highway Diesel Fuel Price Survey," Form EIA-895, "Monthly Quantity and Value of Natural Gas Report," ▪ EIA, Office of Coal, Nuclear, Electric, and Alternate Fuels, Form EIA-826, "Monthly Electric Utility Sales and Revenue Report with State Distributions." ▪ U.S. Department of Transportation, 2001 National Household Travel Survey (NHTS), January 2004 public-use file augmented by EIA.  See http://www.eia.doe.gov/emeu/rtecs/nhts_survey/2001/index.html for details on augmentations to NHTS public-use data.