| Activity Effect | Structure Effect | Weather Effect | Service Level Effect | Energy Efficiency Effect |
|
|---|---|---|---|---|---|
| 1990 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 1991 | 26.63 | -0.34 | 13.17 | 6.21 | -23.58 |
| 1992 | 45.97 | -0.23 | 11.71 | 12.01 | -34.80 |
| 1993 | 60.76 | -0.19 | 33.96 | 17.25 | -45.13 |
| 1994 | 69.56 | 0.55 | 24.48 | 22.30 | -55.40 |
| 1995 | 79.65 | 1.19 | 30.85 | 27.56 | -44.24 |
| 1996 | 88.89 | 1.97 | 43.29 | 32.45 | -50.70 |
| 1997 | 102.16 | 2.38 | 22.11 | 37.82 | -31.54 |
| 1998 | 111.68 | 2.38 | -21.63 | 40.63 | -54.50 |
| 1999 | 127.38 | 2.38 | 3.53 | 45.62 | -65.27 |
| 2000 | 147.17 | 1.96 | 11.86 | 53.51 | -7.51 |
| 2001 | 158.46 | 2.44 | -2.46 | 58.56 | -21.86 |
| 2002 | 178.40 | 3.36 | 38.99 | 63.83 | -18.95 |
| 2003 | 194.81 | 3.83 | 33.56 | 71.72 | -3.35 |
| 2004 | 218.55 | 3.26 | 10.95 | 75.47 | -3.05 |