CHAPTER TWENTY-THREE
Efficiency and Conservation
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Exhibit 23-4
| Year | Reference | Current | Best |
|---|---|---|---|
| 2003 | 1,013 | 1,013 | 1,013 |
| 2010 | 1,171 | 1,126 | 1,084 |
| 2015 | 1,273 | 1,188 | 1,094 |
| 2020 | 1,385 | 1,258 | 1,107 |
Source: Western Governors’ Association.