| Year | Month | Day | Rating | Rank |
|---|---|---|---|---|
| 2008 | September | 1 | 9131 | 907 |
| 2008 | August | 1 | 9162 | 976 |
| 2008 | July | 1 | 9215 | 950 |
| 2008 | June | 1 | 9219 | 964 |
| 2008 | May | 1 | 9228 | 998 |
| 2008 | April | 1 | 9238 | 997 |
| 2008 | March | 1 | 9255 | 987 |
| 2008 | February | 1 | 9268 | 956 |
| 2008 | January | 1 | 9269 | 965 |
| 2007 | December | 1 | 9291 | 949 |
| 2007 | November | 1 | 9297 | 954 |
| 2007 | October | 1 | 9358 | 958 |