| Base- line | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | Previous Year % Change | First Year % Change | |
| Unicom | 71 | 68 | 68 | 62 | 66 | 62 | 59 | # | N/A | N/A | ||||||||||||
| Central and South West | 77 | 82 | 78 | 78 | NM | 76 | 79 | # | N/A | N/A | ||||||||||||
| Cinergy | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | 74 | 75 | 71 | # | N/A | N/A | ||||||
| GPU | 77 | 79 | 79 | 69 | 75 | 75 | 78 | # | N/A | N/A | ||||||||||||
| KeySpan | NM | NM | NM | NM | NM | NM | NM | 68 | 72 | 71 | 74 | 70 | 71 | 74 | # | N/A | N/A | |||||
| Niagara Mohawk Power | 69 | 73 | 64 | 65 | 68 | 68 | 69 | 69 | # | N/A | N/A | |||||||||||
| PECO Energy | NM | 72 | 70 | 65 | 66 | 71 | 72 | # | N/A | N/A | ||||||||||||
| Iberdrola | NM | NM | NM | NM | NM | NM | NM | 73 | 73 | 71 | 70 | 73 | 74 | 70 | 75 | 73 | 72 | NM | NM | NM | N/A | N/A |
| Reliant Energy | NM | NM | NM | 68 | 73 | 73 | 75 | 67 | 74 | 70 | 68 | 69 | 69 | 65 | 72 | 69 | 72 | NM | NM | NM | N/A | N/A |
| Energy Future Holdings | 73 | 74 | 77 | 70 | 76 | 74 | 76 | 71 | 75 | 74 | 74 | 72 | 65 | 63 | 68 | 72 | 73 | NM | NM | NM | N/A | N/A |
| Allegheny Energy | NM | NM | NM | NM | NM | NM | NM | 79 | 80 | 76 | 75 | 74 | 80 | 79 | NM | NM | NM | NM | NM | NM | N/A | N/A |
| PacifiCorp | NM | NM | NM | NM | NM | NM | NM | 72 | 71 | 76 | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | N/A | N/A |
| National Grid | 73 | 75 | 69 | 72 | 65 | 71 | 71 | 71 | 70 | NM | NM | NM | N/A | N/A | ||||||||
| Pepco Holdings | NM | NM | NM | NM | NM | NM | NM | NM | NM | 77 | 72 | 73 | 71 | 70 | 69 | 68 | 70 | 54 | 69 | 71 | 2.9 | -7.8 |
| Pacific Gas and Electric | 73 | 71 | 72 | 71 | 68 | 71 | 73 | 49 | 58 | 66 | 66 | 67 | 68 | 72 | 70 | 73 | 70 | 67 | 69 | 74 | 7.2 | 1.4 |
| Ameren | NM | NM | NM | NM | NM | NM | NM | 78 | 76 | 77 | 74 | 75 | 74 | 57 | 64 | 68 | 71 | 71 | 78 | 74 | -5.1 | -5.1 |
| American Electric Power | 78 | 80 | 82 | 77 | 78 | 77 | 79 | 76 | 75 | 74 | 75 | 74 | 75 | 73 | 76 | 74 | 73 | 72 | 79 | 75 | -5.1 | -3.8 |
| Consolidated Edison | 77 | 76 | 74 | 71 | 69 | 73 | 71 | 66 | 74 | 72 | 68 | 68 | 68 | 69 | 66 | 66 | 66 | 72 | 71 | 70 | -1.4 | -9.1 |
| All Others | 75 | 73 | 75 | 74 | 75 | 74 | 76 | 68 | 74 | 72 | 74 | 74 | 70 | 72 | 72 | 72 | 74 | 72 | 75 | 77 | 2.7 | 2.7 |
| DTE Energy | 78 | 78 | 78 | 75 | 74 | 74 | 75 | 74 | 68 | 72 | 71 | 68 | 65 | 70 | 72 | 71 | 72 | 73 | 72 | 78 | 8.3 | 0.0 |
| Exelon | 66 | 69 | 71 | 71 | 71 | 70 | 68 | 69 | 70 | 72 | 73 | 70 | 74 | 5.7 | 12.1 | |||||||
| Xcel Energy | NM | NM | NM | NM | NM | NM | NM | 65 | 74 | 73 | 70 | 68 | 70 | 71 | 73 | 76 | 72 | 74 | 74 | 76 | 2.7 | 16.9 |
| Investor-Owned Utilities | 74 | 76 | 77 | 1.3 | 4.1 | |||||||||||||||||
| Edison International | 76 | 74 | 77 | 78 | 75 | 73 | 78 | 60 | 66 | 69 | 71 | 75 | 78 | 74 | 75 | 77 | 75 | 75 | 76 | 77 | 1.3 | 1.3 |
| Northeast Utilities | 70 | 70 | 72 | 67 | 65 | 68 | 72 | 76 | 72 | 73 | 68 | 74 | 72 | 69 | 68 | 72 | 74 | 75 | 59 | 73 | 23.7 | 4.3 |
| Entergy | 75 | 76 | 75 | 70 | 70 | 69 | 74 | 69 | 74 | 71 | 73 | 75 | 70 | 73 | 74 | 74 | 73 | 76 | 78 | 81 | 3.8 | 8.0 |
| NiSource | NM | NM | NM | NM | NM | NM | NM | 67 | 68 | 66 | 68 | 68 | 66 | 72 | 70 | 71 | 76 | 76 | 81 | 81 | 0.0 | 20.9 |
| Dominion Resources | 74 | 75 | 72 | 74 | 75 | 74 | 75 | 65 | 70 | 72 | 67 | 71 | 70 | 73 | 75 | 72 | 75 | 77 | 80 | 82 | 2.5 | 10.8 |
| Southern Company | 78 | 78 | 76 | 77 | 79 | 78 | 80 | 80 | 81 | 82 | 81 | 79 | 80 | 82 | 81 | 78 | 78 | 77 | 81 | 83 | 2.5 | 6.4 |
| Duke Energy | 82 | 80 | 83 | 79 | 78 | 80 | 79 | 79 | 79 | 77 | 78 | 78 | 80 | 79 | 76 | 77 | 76 | 77 | 79 | 75 | -5.1 | -8.5 |
| CMS Energy | 79 | 76 | 77 | 75 | 73 | 76 | 76 | 75 | 76 | 78 | 71 | 74 | 72 | 73 | 74 | 70 | 75 | 77 | 75 | 79 | 5.3 | 0.0 |
| NextEra Energy | 77 | 77 | 74 | 69 | 75 | 74 | 76 | 73 | 71 | 73 | 76 | 74 | 68 | 73 | 76 | 76 | 75 | 78 | 80 | 80 | 0.0 | 3.9 |
| FirstEnergy | NM | NM | NM | NM | NM | NM | NM | 72 | 77 | 76 | 69 | 71 | 75 | 76 | 77 | 74 | 75 | 78 | 76 | 75 | -1.3 | 4.2 |
| Progress Energy | NM | NM | NM | NM | NM | NM | NM | 76 | 77 | 75 | 78 | 75 | 77 | 77 | 77 | 75 | 73 | 78 | 76 | # | N/A | N/A |
| Public Service Enterprise Group | 79 | 80 | 77 | 75 | 74 | 73 | 78 | 75 | 76 | 76 | 73 | 74 | 75 | 73 | 75 | 76 | 78 | 78 | 77 | 74 | -3.9 | -6.3 |
| PPL | NM | NM | NM | NM | NM | NM | NM | 80 | 80 | 80 | 79 | 80 | 81 | 81 | 78 | 79 | 74 | 79 | 80 | 80 | 0.0 | 0.0 |
| MidAmerican Energy Holdings | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | 78 | 79 | 79 | 79 | 79 | 82 | 3.8 | 5.1 |
| CenterPoint Energy | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | 73 | 72 | 74 | 75 | 78 | 78 | 80 | 82 | 84 | 2.4 | 15.1 |
| Sempra Energy | NM | NM | NM | NM | NM | NM | NM | 67 | 74 | 77 | 77 | 79 | 75 | 80 | 80 | 80 | 83 | 81 | 83 | 80 | -3.6 | 19.4 |
| Atmos Energy | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | 75 | 78 | 78 | 81 | 83 | 85 | 2.4 | 13.3 |
Score tables print best in landscape.
Legend

Notes
The ACSI releases industry results monthly and updates the national index quarterly. Baseline measurements are from the summer of 1994.
The "All Others" score for an industry represents the remainder of the total industry market share, less the market shares of the measured companies. This benchmark is an aggregate of a representative number of customer interviews from each of potentially hundreds of smaller companies within the industry.
**The limited-service restaurant industry was not measured in 2004 due to a change in the quarterly measurement system that was in place at that time.