Top tier: 15.3% off the peak
Middle tier: 37.6% off the peak
Bottom tier: 44.9% off the peak

Note: the chart is rebased to use December '99 = 100%, this way my numbers can be directly compared with Case-Shiller.
| Month | S&P Case-Shiller | SDHPI |
| January '08 | 197.45 | 198.06 |
| February '08 | 190.34 | 190.64 |
| March '08 | 185.42 | 184.87 |
| April '08 | 180.56 | 179.99 |
| May '08 | 178.03 | 176.52 |
| June '08 | 175.37 | 174.37 |
| July '08 | 172.20 | 171.42 |
| August '08 | 168.25 | |
| September '08 | 164.32 | |
| October '08 | 159.23 |