
| Start of Proposition 2 1/2 | ||||
| Year | Res. | CIP | Shift | |
| 1982 | $17.96 | $33.65 | 1.75 | re-val |
| 1983 | $17.38 | $32.06 | 1.75 | |
| 1984 | $17.49 | $32.48 | 1.75 | |
| 1985 | $16.54 | $31.05 | 1.75 | re-val |
| 1986 | $17.31 | $32.32 | 1.75 | |
| 1987 | $17.44 | $32.10 | 1.75 | |
| 1988 | $9.68 | $16.77 | 1.75 | re-val |
| 1989 | $10.03 | $21.70 | 1.75 | |
| 1990 | $10.44 | $22.54 | 1.75 | |
| 1991 | $9.74 | $20.91 | 1.75 | re-val |
| 1992 | $10.14 | $21.52 | 1.75 | |
| 1993 | $10.47 | $22.44 | 1.75 | |
| 1994 | $10.92 | $23.33 | 1.75 | re-val |
| 1995 | $11.82 | $25.22 | 1.75 | |
| 1996 | $12.40 | $26.41 | 1.75 | |
| 1997 | $14.65 | $29.96 | 1.75 | re-val |
| 1998 | $15.61 | $31.98 | 1.75 | |
| 1999 | $16.60 | $33.95 | 1.75 | |
| 2000 | $16.12 | $32.62 | 1.75 | re-val |
| 2001 | $16.05 | $31.48 | 1.70 | |
| 2002 | $16.20 | $31.62 | 1.70 | |
| 2003 | $13.43 | $25.90 | 1.70 | re-val |
| 2004 | $13.52 | $26.14 | 1.70 | |
| 2005 | $11.67 | $22.10 | 1.70 | |
| 2006 | $10.63 | $22.42 | 1.87 | re-val |
| 2007 | $10.97 | $20.55 | 1.70 | |
| 2008 | $11.34 | $20.94 | 1.68 | |
| 2009 | $12.11 | $22.91 | 1.70 | re-val |
| 2010 | $13.35 | $24.52 | 1.65 | |
| 2011 | $14.13 | $27.36 | 1.70 | |
| 2012 | $15.28 | $29.77 | 1.70 | re-val |