| 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 | ||||||||||||
| 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 |
| National Grid | 73 | 75 | 69 | 72 | 65 | 71 | 71 | 71 | 70 | NM | NM | NM | N/A | N/A | ||||||||
| 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 |
| 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 |
| Central and South West | 77 | 82 | 78 | 78 | NM | 76 | 79 | # | N/A | N/A | ||||||||||||
| PECO Energy | NM | 72 | 70 | 65 | 66 | 71 | 72 | # | N/A | N/A | ||||||||||||
| Niagara Mohawk Power | 69 | 73 | 64 | 65 | 68 | 68 | 69 | 69 | # | N/A | N/A | |||||||||||
| KeySpan | NM | NM | NM | NM | NM | NM | NM | 68 | 72 | 71 | 74 | 70 | 71 | 74 | # | N/A | N/A | |||||
| GPU | 77 | 79 | 79 | 69 | 75 | 75 | 78 | # | N/A | N/A | ||||||||||||
| Cinergy | NM | NM | NM | NM | NM | NM | NM | NM | NM | NM | 74 | 75 | 71 | # | N/A | N/A | ||||||
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Investor-Owned Utilities | 74 | 76 | 77 | 1.3 | 4.1 | |||||||||||||||||
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Exelon | 66 | 69 | 71 | 71 | 71 | 70 | 68 | 69 | 70 | 72 | 73 | 70 | 74 | 5.7 | 12.1 | |||||||
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
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.