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  Quarterly 1999 - Present Supplier Participation and Market Share
   
  District of Columbia Residential and Commercial Customer Choice Program - Residential Customers
 
Market Share
Washington Gas Customers
Washington Gas Customer Usage
Quarters Ended
No. of Participating Suppliers
% of Customers Choosing Competitive Suppliers
% of WG Customers on Sales Service
% Competitive Supplier Usage
% WG Sales Service Usage
Mar-99
2
6%
94%
8%
92%
Jun-99
2
6%
94%
8%
92%
Sep-99
2
6%
94%
8%
92%
Dec-99
4
8%
92%
10%
90%
Mar-00
5
8%
92%
11%
89%
Jun-00
5
11%
89%
12%
88%
Sep-00
4
13%
87%
14%
86%
Dec-00
3
14%
86%
14%
86%
Mar-01
3
12%
88%
13%
87%
Jun-01
2
8%
92%
10%
90%
Sep-01
2
9%
91%
11%
89%
Dec-01
3
12%
88%
14%
86%
Mar-02
3
12%
88%
15%
85%
Jun-02
4
14%
86%
14%
86%
Sep-02
5
16%
84%
16%
84%
Dec-02
5
19%
81%
22%
78%
Mar-03
5
20%
80%
23%
77%
Jun-03
4
18%
82%
24%
76%
Sep-03
4
17%
83%
20%
80%
Dec-03
4
16%
84%
20%
80%
Mar-04
4
16%
84%
18%
82%
Jun-04 4 14% 86% 17% 83%
Sep-04
4
13%
87%
15%
85%
Dec-04 4 12% 88% 16% 84%
Mar-05 4 10% 90% 14% 86%
Jun-05 4 9% 91% 11% 89%
Sep-05 4 8% 92% 10% 90%
Dec-05 5 9% 91% 12% 88%
Mar-06 5 10% 90% 12% 88%
Jun-06 5 9% 91% 12% 88%
Sep-06 5 9% 91% 12% 88%
Dec-06 5 9% 91% 12% 88%
Mar-07 5 9% 91% 11% 89%
Jun-07 5 9% 91% 11% 89%
Sep-07 4 9% 91% 11% 89%
Dec-07 4 9% 91% 11% 89%
Mar-08 4 9% 91% 11% 89%
Jun-08 4 9% 91% 12% 88%
Sep-08 5 9% 91% 11% 89%
Dec-08 5 9% 91% 11% 89%
Mar-09 5 9% 91% 11% 89%
Jun-09 5 9% 91% 11% 89%
Sep-09 5 9% 91% 11% 89%
Dec-09 5 9% 91% 12% 88%
Mar-10 5 9% 91% 12% 88%
Jun-10 5 9% 91% 12% 88%
Sep-10 5 9% 91% 11% 89%
Dec-10 5 9% 91% 12% 88%
Mar-11 5 9% 91% 12% 88%
Jun-11 5 9% 91% 12% 88%
Sep-11 6 9% 91% 12% 88%
Dec-11 6 10% 90% 13% 87%
Mar-12 6 11% 89% 14% 86%
Jun-12 6 11% 89% 14% 86%
Sep-12 6 11% 89% 13% 87%
Dec-12 6 11% 89% 14% 86%
Mar-13 6 11% 89% 14% 86%
Jun-13 7 11% 89% 15% 85%
Sep-13 7 11% 89% 15% 85%
Dec-13 7 11% 89% 15% 85%
Mar-14 8 11% 89% 14% 86%
Jun-14 9 11% 89% 15% 85%
Sep-14 9 12% 88% 15% 85%
Dec-14 9 12% 88% 15% 85%
Mar-15 9 11% 89% 16% 84%
Jun-15 9 11% 89% 15% 85%
Sep-15 9 11% 89% 15% 85%
Dec-15 9 11% 89% 15% 85%
Mar-16 9 11% 89% 14% 86%
   
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  District of Columbia Residential and Commercial Customer Choice Program - Commercial Customers
 
Market Share
Washington Gas Customers
Washington Gas Customer Usage
Quarters Ended
No. of Participating Suppliers
% of Customers choosing competitive suppliers
% of WG Customers on Sales Service
% Competitive Supplier Usage
% WG Sales Service Usage
Mar-99
7
1%
99%
7%
93%
Jun-99
7
1%
99%
7%
93%
Sep-99
8
1%
99%
9%
91%
Dec-99
13
17%
83%
22%
78%
Mar-00
13
22%
78%
26%
74%
Jun-00
14
28%
72%
34%
66%
Sep-00
13
33%
67%
35%
65%
Dec-00
11
32%
68%
34%
66%
Mar-01
12
30%
70%
33%
67%
Jun-01
10
30%
70%
40%
60%
Sep-01
11
30%
70%
47%
53%
Dec-01
12
32%
68%
49%
51%
Mar-02
12
33%
67%
51%
49%
Jun-02
12
34%
66%
50%
50%
Sep-02
12
35%
65%
49%
51%
Dec-02
12
33%
67%
52%
48%
Mar-03
12
33%
67%
33%
67%
Jun-03
11
31%
69%
48%
52%
Sep-03
11
31%
69%
50%
50%
Dec-03
12
33%
67%
41%
59%
Mar-04
12
33%
67%
47%
53%
Jun-04
11
32%
68%
49%
51%
Sep-04
11
31%
69%
48%
52%
Dec-04 11 31% 69% 46% 54%
Mar-05 11 31% 69% 48% 52%
Jun-05 10 31% 69% 51% 49%
Sep-05 10 30% 70% 54% 46%
Dec-05 9 32% 68% 51% 49%
Mar-06 9 34% 66% 53% 47%
Jun-06 10 34% 66% 54% 46%
Sep-06 10 33% 67% 55% 45%
Dec-06 11 34% 66% 55% 45%
Mar-07 11 35% 65% 56% 44%
Jun-07 11 34% 66% 56% 44%
Sep-07 11 34% 66% 57% 43%
Dec-07 11 34% 66% 57% 43%
Mar-08 11 34% 66% 55% 45%
Jun-08 11 34% 66% 56% 44%
Sep-08 11 33% 67% 65% 35%
Dec-08 10 34% 66% 58% 42%
Mar-09 10 34% 66% 57% 43%
Jun-09 10 36% 64% 60% 40%
Sep-09 10 37% 63% 60% 40%
Dec-09 10 37% 63% 63% 37%
Mar-10 10 37% 63% 61% 39%
Jun-10 10 37% 63% 65% 35%
Sep-10 10 37% 63% 61% 39%
Dec-10 11 36% 64% 62% 38%
Mar-11 11 37% 63% 62% 38%
Jun-11 11 37% 63% 61% 39%
Sep-11 11 37% 63% 57% 43%
Dec-11 11 37% 63% 60% 40%
Mar-12 11 37% 63% 58% 42%
Jun-12 11 37% 63% 62% 38%
Sep-12 12 37% 63% 60% 40%
Dec-12 12 37% 63% 62% 38%
Mar-13 12 35% 65% 57% 43%
Jun-13 13 34% 66% 56% 44%
Sep-13 13 36% 64% 60% 40%
Dec-13 14 36% 64% 62% 38%
Mar-14 13 37% 63% 60% 40%
Jun-14 13 37% 63% 60% 40%
Sep-14 14 37% 63% 61% 39%
Dec-14 13 38% 62% 62% 38%
Mar-15 13 36% 64% 65% 35%
Jun-15 13 37% 63% 51% 49%
Sep-15 13 37% 63% 63% 37%
Dec-15 13 37% 63% 69% 31%
Mar-16 13 37% 63% 61% 39%

Source: Washington Gas Light Company
   
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