Here is the performance stats of the solution by JeremyG for TSQL Challenge21.
| Attempt | Start Time | Reads | Writes | CPU | Duration (Sec) |
| 1 | May 26 2010 3:04PM | 1269145 | 1054 | 5257 | 6.589 |
| 2 | May 26 2010 4:07PM | 1269130 | 1056 | 5242 | 6.229 |
| 3 | May 26 2010 5:05PM | 1269141 | 1053 | 4867 | 5.022 |
| 4 | May 26 2010 5:53PM | 1269152 | 1056 | 4821 | 4.972 |
| 5 | May 26 2010 6:41PM | 1269133 | 1053 | 4976 | 5.155 |