Appendix C – Landline Telephone Usage in Barrels of Oil per Day
Year
|
U.S. Household Projections
|
Percentage of Households with Landline Telephones
|
Number of Households with Landline Phones
|
Total Energy Used by Landline Phones (Barrels of Oil per Day)
|
|
U.S. Bureau of the Census
|
Centers for Disease Control
|
Calculated
|
Calculated
|
1990
|
91,966,534
|
100.00
|
91,966,534
|
13,611
|
1991
|
93,097,766
|
100.00
|
93,097,766
|
13,779
|
1992
|
94,228,997
|
100.00
|
94,228,997
|
13,946
|
1993
|
95,360,228
|
100.00
|
95,360,228
|
14,114
|
1994
|
96,491,460
|
100.00
|
96,491,460
|
14,281
|
1995
|
97,722,883
|
100.00
|
97,722,883
|
14,463
|
1996
|
98,856,603
|
100.00
|
98,856,603
|
14,631
|
1997
|
99,965,175
|
100.00
|
99,965,175
|
14,795
|
1998
|
101,042,864
|
100.00
|
101,042,864
|
14,955
|
1999
|
102,118,600
|
100.00
|
102,118,600
|
15,114
|
2000
|
103,245,963
|
100.00
|
103,245,963
|
15,281
|
2001
|
104,344,445
|
100.00
|
104,344,445
|
15,443
|
2002
|
105,456,124
|
97.49
|
102,812,188
|
15,217
|
2003
|
106,566,127
|
94.41
|
100,613,648
|
14,891
|
2004
|
107,672,899
|
91.20
|
98,197,684
|
14,534
|
2005
|
108,818,659
|
88.80
|
96,630,969
|
14,302
|
2006
|
109,981,970
|
84.10
|
92,494,837
|
13,690
|
2007
|
111,162,259
|
81.90
|
91,041,890
|
13,475
|
2008
|
112,362,848
|
79.02
|
88,790,728
|
13,141
|
2009
|
113,567,967
|
75.94
|
86,246,759
|
12,765
|
2010
|
114,825,428
|
72.86
|
83,666,728
|
12,383
|
2011
|
115,722,392
|
69.79
|
80,757,698
|
11,952
|
2012
|
116,853,623
|
66.71
|
77,949,714
|
11,537
|
2013
|
117,984,855
|
63.63
|
75,072,078
|
11,111
|
2014
|
119,116,086
|
60.55
|
72,124,790
|
10,675
|
2015
|
120,247,317
|
57.47
|
69,107,851
|
10,228
|
2016
|
121,378,549
|
54.39
|
66,021,261
|
9,771
|
2017
|
122,509,780
|
51.31
|
62,865,019
|
9,304
|
2018
|
123,641,011
|
48.24
|
59,639,125
|
8,827
|
2019
|
124,772,243
|
45.16
|
56,343,580
|
8,339
|
2020
|
125,903,474
|
42.08
|
52,978,383
|
7,841
|
2021
|
127,034,705
|
39.00
|
49,543,535
|
7,333
|
2022
|
128,165,937
|
35.92
|
46,039,035
|
6,814
|
2023
|
129,297,168
|
32.84
|
42,464,884
|
6,285
|
2024
|
130,428,399
|
29.76
|
38,821,081
|
5,746
|
2025
|
131,559,631
|
26.69
|
35,107,627
|
5,196
|
2026
|
132,690,862
|
23.61
|
31,324,521
|
4,636
|
2027
|
133,822,093
|
20.53
|
27,471,764
|
4,066
|
2028
|
134,953,325
|
17.45
|
23,549,355
|
3,485
|
2029
|
136,084,556
|
14.37
|
19,557,295
|
2,895
|
2030
|
137,215,787
|
11.29
|
15,495,583
|
2,293
|
2031
|
138,347,019
|
8.21
|
11,364,219
|
1,682
|
2032
|
139,478,250
|
5.14
|
7,163,204
|
1,060
|
2033
|
140,609,481
|
2.06
|
2,892,538
|
428
|
2034
|
141,740,713
|
0.00
|
0
|
0
|
Note on “U.S. Households Projections”: The U.S. Bureau of the Census published figures of their projections for the number of households in the United States between 1995 and 2010 (As indicated by the boxed in region of the above chart). After determining that the data follows a linear model, we used a linear regression to extrapolate the data beyond the date ranges presented by the U.S. Bureau of the Census.
Note on “Percentage of Households with Landline Phones”: The Centers for Disease Control published figures of their findings of the percentage of households with landline phones in bi-annual increments. After determining that the data followed a linear model, we used a linear regression on their bi-annual figures to obtain the annual figures used in our report. In order to compare the bi-annual data to other annual data, we included only the data collected for the second half of the listed year.
Note on “Number of Households with Landline Phones”: The figures in this data set are derived by multiplying the number of U.S. households by the percentage of households with landline phones.
Note on “Total Energy Used by Landline Phones (Barrels of Oil per Day)”: The figures in this data set are derived by the method described in Requirement 1 using the data from Table 1.3 and Table 1.4 and using the conversion rates found in Bio-energy Conversion Factors.
Appendix D – Cellular Telephone Usage in Barrels of Oil per Day
Year
|
U.S. Population Projections
|
Number of Cell Phone Subscriptions (Millions)
|
Percent of Population with Cell Phones
|
Total Number of People with Cell Phones
|
Total Energy Used by Cell Phones (Barrels of Oil per Day)
|
|
U.S. Bureau of the Census
|
Wireless Matrix Report
|
Calculated
|
Calculated
|
Caclulated
|
1990
|
247,459,004
|
0.0
|
|
|
0
|
1991
|
250,622,084
|
0.0
|
|
|
0
|
1992
|
253,785,164
|
0.0
|
|
|
0
|
1993
|
256,948,244
|
0.0
|
|
|
0
|
1994
|
260,111,324
|
0.0
|
0
|
0
|
0
|
1995
|
263,274,404
|
3.8
|
1.303997219
|
343,309,091
|
127
|
1996
|
266,437,484
|
24.3
|
8.192745666
|
2,182,854,545
|
806
|
1997
|
269,600,565
|
44.7
|
14.91985006
|
4,022,400,000
|
1,485
|
1998
|
272,763,645
|
69.2
|
22.83295491
|
6,228,000,000
|
2,300
|
1999
|
275,926,725
|
86.0
|
28.0509255
|
7,740,000,000
|
2,858
|
2000
|
282,158,336
|
109.5
|
34.92719776
|
9,855,000,000
|
3,639
|
2001
|
284,915,024
|
128.4
|
40.55946169
|
11,556,000,000
|
4,267
|
2002
|
287,501,476
|
141.0
|
44.13890383
|
12,690,000,000
|
4,686
|
2003
|
289,985,771
|
159.0
|
49.34724883
|
14,310,000,000
|
5,284
|
2004
|
292,805,643
|
182.0
|
55.94154482
|
16,380,000,000
|
6,049
|
2005
|
295,583,436
|
208.0
|
63.33237157
|
18,720,000,000
|
6,913
|
2006
|
298,442,420
|
233.0
|
70.26481021
|
20,970,000,000
|
7,744
|
2007
|
301,279,593
|
255.0
|
76.17508963
|
22,950,000,000
|
8,475
|
2008
|
304,228,257
|
269.5
|
79.73421088
|
24,257,400,000
|
8,958
|
2009
|
307,212,123
|
290.0
|
84.94764204
|
26,096,945,455
|
9,637
|
2010
|
310,232,863
|
310.4
|
90.05006961
|
27,936,490,909
|
10,316
|
2011
|
313,232,044
|
330.8
|
95.06063295
|
29,776,036,364
|
10,996
|
2012
|
316,265,537
|
351.3
|
99.96530801
|
31,615,581,818
|
11,675
|
2013
|
319,330,342
|
371.7
|
100
|
31,933,034,200
|
11,792
|
2014
|
322,422,965
|
|
100
|
32242296500
|
11,906
|
2015
|
325,539,790
|
|
100
|
32553979000
|
12,021
|
2016
|
328,677,531
|
|
100
|
32867753100
|
12,137
|
2017
|
331,833,494
|
|
100
|
33183349400
|
12,254
|
2018
|
335,005,223
|
|
100
|
33500522300
|
12,371
|
2019
|
338,190,395
|
|
100
|
33819039500
|
12,489
|
2020
|
341,386,665
|
|
100
|
34138666500
|
12,607
|
2021
|
344,591,727
|
|
100
|
34459172700
|
12,725
|
2022
|
347,803,053
|
|
100
|
34780305300
|
12,844
|
2023
|
351,018,246
|
|
100
|
35101824600
|
12,962
|
2024
|
354,235,045
|
|
100
|
35423504500
|
13,081
|
2025
|
357,451,620
|
|
100
|
35745162000
|
13,200
|
2026
|
360,666,783
|
|
100
|
36066678300
|
13,319
|
2027
|
363,879,699
|
|
100
|
36387969900
|
13,437
|
2028
|
367,090,055
|
|
100
|
36709005500
|
13,556
|
2029
|
370,297,901
|
|
100
|
37029790100
|
13,674
|
2030
|
373,503,674
|
|
100
|
37350367400
|
13,793
|
2031
|
376,708,065
|
|
100
|
37670806500
|
13,911
|
2032
|
379,912,056
|
|
100
|
37991205600
|
14,029
|
2033
|
383,116,539
|
|
100
|
38311653900
|
14,148
|
2034
|
386,322,606
|
|
100
|
38632260600
|
14,266
|
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