Table 4.6. Light Usage by Family Income Category, Percent of U.S. Households, 1993

1993 Family Income Category
Housing Unit and Household
Characteristics
Total
Less than $5,000
$5,000 to $9,999
$10,000 to $14,999
$15,000 to $19,999
$20,000 to $24,999
$25,000 to $34,999
$35,000 to $49,999
$50,000 to $49,000
$75,000 or More
RSE Column Factors:
0.4
1.8
1.2
1.1
1.1
1.2
0.9
0.8
0.9
1.1
RSE
Row
Factor
Total...............................................
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
0.0
Indoor Electric Lights
Total Number Lights
1 to 4 Hours
None.........................................
10.0
18.7
14.0
12.7
10.0
10.2
9.0
7.6
8.0
6.3
12.08
1 ................................................
22.9
35.8
33.0
29.5
28.4
22.6
24.1
16.1
13.9
14.1
6.91
2 ................................................
28.4
23.2
29.2
29.5
30.1
36.4
27.3
28.1
26.4
23.6
6.07
3 ................................................
17.4
11.4
15.5
14.2
15.9
16.3
17.4
20.2
20.8
18.7
8.22
4 ................................................
9.5
5.4
3.7
7.1
7.9
6.4
8.9
13.3
13.2
14.7
12.67
5 or More ..................................
11.9
5.5
4.7
7.0
7.7
8.0
13.4
14.7
17.6
22.5
12.40
4 to 12 Hours
None.........................................
13.9
23.7
26.2
19.2
15.3
14.2
12.7
7.4
8.6
8.1
9.68
1 ................................................
21.6
31.7
33.1
29.2
23.8
23.1
19.6
18.1
13.4
10.8
7.07
2 ................................................
27.4
25.4
26.7
27.0
25.7
30.1
31.2
28.3
26.8
20.8
6.32
3 ................................................
17.3
9.4
8.1
14.5
18.9
16.9
17.5
22.4
21.2
18.1
8.17
4 ................................................
9.5
5.3
4.1
5.3
10.2
8.9
9.0
11.8
12.6
15.4
11.70
5 or More ..................................
10.4
4.6
1.8
4.9
6.0
6.9
10.0
12.0
17.4
26.8
12.97
More than 12 Hours per Day
None.........................................
68.7
66.2
70.3
70.4
64.8
71.7
68.2
68.2
67.1
71.0
2.66
1 ................................................
17.2
21.1
18.6
17.3
20.6
17.0
15.6
16.5
17.8
12.9
8.70
2 ................................................
7.9
10.1
7.8
7.1
8.8
7.2
9.1
7.6
7.5
7.4
12.41
3 ................................................
3.5
Q
1.6
3.7
4.3
1.6
4.2
4.0
4.0
4.1
20.14
4 ................................................
1.5
Q
1.2
1.3
Q
Q
1.6
2.4
2.1
Q
29.96
5 or More ..................................
1.2
Q
Q
Q
Q
Q
1.3
1.3
1.6
2.8
31.97
Incandescent Lights Used
1 to 4 Hours per Day
None.........................................
15.3
23.6
20.2
18.4
15.8
17.6
14.5
11.5
12.3
11.4
9.25
1 ................................................
25.2
36.3
34.5
31.2
30.1
25.2
25.8
19.3
17.8
16.9
6.50
2 ................................................
26.2
21.1
25.2
26.2
26.9
31.2
25.0
27.2
25.2
25.3
6.28
3 ................................................
15.9
9.2
12.6
13.1
14.7
13.9
16.0
19.1
20.3
16.8
8.71
4 ................................................
7.8
4.9
3.0
5.2
6.3
6.4
7.9
10.7
10.0
11.9
14.08
5 or More ..................................
9.7
4.9
4.3
6.0
6.2
5.8
10.8
12.1
14.4
17.7
14.27
4 to 12 Hours per Day
None.........................................
18.0
25.8
30.4
24.3
21.7
18.3
16.6
10.7
12.6
11.0
8.18
1 ................................................
25.4
35.0
34.6
29.3
25.7
26.1
24.8
23.4
20.2
15.9
6.35
2 ................................................
26.7
23.0
23.3
27.0
23.8
28.9
29.4
29.6
26.6
23.2
6.11
3 ................................................
14.4
7.3
7.5
11.4
16.2
15.0
13.4
18.4
17.4
17.0
9.39
4 ................................................
7.7
5.4
3.2
4.3
7.4
7.3
8.2
8.8
11.1
11.0
13.64
5 or More ..................................
7.8
Q
1.0
3.6
5.2
4.5
7.7
9.0
12.1
21.7
15.09
More than 12 Hours per Day
None.........................................
72.9
68.5
73.6
73.9
69.4
74.3
74.0
72.6
72.8
74.1
2.36
1 ................................................
16.3
21.8
17.9
15.8
19.3
17.6
13.7
15.8
16.0
13.4
9.04
2 ................................................
6.6
7.9
5.7
5.9
8.7
4.7
7.0
6.6
6.2
7.2
13.47
3 ................................................
2.5
Q
1.3
3.3
1.3
1.5
3.3
2.9
3.0
2.9
23.27
4 ................................................
1.0
Q
1.3
Q
Q
Q
Q
1.3
Q
Q
31.84
5 or More ..................................
0.8
Q
Q
Q
Q
Q
1.3
Q
1.1
Q
34.33
Fluorescent Lights Used
1 to 4 Hours per Day
None.........................................
78.2
86.5
83.8
82.2
80.6
78.5
78.2
77.3
72.2
69.3
2.10
1 ................................................
16.6
11.9
12.3
14.9
14.9
16.3
17.3
17.5
20.8
19.9
8.78
2 ................................................
3.9
Q
3.6
2.1
4.0
3.4
3.3
3.7
5.2
8.0
20.05
3 or More ..................................
1.3
Q
Q
Q
Q
1.8
1.2
1.6
1.9
2.8
29.78
4 to 12 Hours per Day
None.........................................
77.7
88.7
88.7
84.6
79.1
78.3
78.1
73.4
69.7
67.5
1.99
1 ................................................
16.4
9.3
9.1
11.2
14.9
18.2
17.2
19.9
20.4
21.5
9.04
2 ................................................
4.4
Q
1.3
3.5
5.2
2.5
3.4
5.3
7.0
7.9
18.43
3 or More ..................................
1.5
Q
Q
Q
Q
Q
1.3
1.4
2.9
3.1
27.51
More than 12 Hours per Day
None.........................................
91.3
93.7
93.7
93.9
91.2
93.2
89.4
90.3
89.0
90.5
1.17
1 ................................................
6.9
6.2
5.4
5.3
6.7
5.9
8.6
7.7
7.7
7.1
14.85
2 ................................................
1.1
Q
Q
Q
Q
Q
1.4
Q
2.9
Q
30.93
3 or More ..................................
0.6
Q
Q
Q
Q
Q
Q
1.3
Q
Q
38.59
Compact Fluorescent Light
Bulbs Used
Yes..............................................
8.9
7.0
4.0
4.8
6.1
9.1
8.0
11.2
13.0
14.7
12.32
No...............................................
91.1
93.0
96.0
95.2
93.9
90.9
92.0
88.8
87.0
85.3
1.20
Halogen Light Bulbs Used
Yes..............................................
11.6
9.3
2.5
6.0
7.1
12.1
11.4
15.8
16.1
21.3
11.22
No...............................................
88.4
90.7
97.5
94.0
92.9
87.9
88.6
84.2
83.9
78.7
1.37
Outdoor Lights
Yes (more than one may apply)....................................
65.8
45.0
49.6
56.9
65.1
63.6
68.0
71.1
78.2
77.5
3.42
Evening Only..............................
26.9
15.5
16.2
19.0
24.6
24.8
25.7
32.6
36.8
36.0
7.23
All Night......................................
17.2
12.5
14.0
17.4
19.1
14.3
19.7
16.1
17.5
21.3
8.46
Automatic Control.......................
18.8
9.7
7.4
11.9
17.3
17.5
17.9
22.4
27.3
31.6
8.59
High Intensity..............................
3.3
Q
1.4
2.5
3.4
2.4
3.3
4.3
4.3
4.8
25.01
All Wattage Less than 150..........
32.6
26.3
28.2
31.8
32.8
35.3
33.4
34.6
33.9
31.6
7.27
Gas Light1...................................
0.6
Q
Q
Q
Q
Q
Q
1.1
Q
Q
41.61
No.................................................
34.2
55.0
50.4
43.1
34.9
36.4
32.0
28.9
21.8
22.5
6.27

1 Gas includes LPG and natural gas.
Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.
Notes: -- To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. -- Because of rounding, data may not sum to totals. -- See "Glossary" for definition of terms used in this report.
Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A-C, E, and H of the 1993 Residential Energy Consumption Survey. (For specific titles of forms, see Appendix A.)

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