| Year | Month | Day | Rating | Rank |
|---|---|---|---|---|
| 2008 | September | 1 | 9283 | 898 |
| 2008 | August | 1 | 9265 | 966 |
| 2008 | July | 1 | 9302 | 940 |
| 2008 | June | 1 | 9311 | 959 |
| 2008 | May | 1 | 9329 | 993 |
| 2008 | April | 1 | 9337 | 993 |
| 2008 | March | 1 | 9383 | 982 |
| 2008 | February | 1 | 9395 | 949 |
| 2008 | January | 1 | 9399 | 958 |
| 2007 | December | 1 | 9399 | 944 |
| 2007 | November | 1 | 9391 | 948 |
| 2007 | October | 1 | 9406 | 953 |