| Year | Month | Day | Rating | Rank |
|---|---|---|---|---|
| 2012 | January | 1 | 509 | 1467 |
| 2011 | December | 1 | 509 | 1456 |
| 2011 | November | 1 | 509 | 1496 |
| 2011 | October | 1 | 509 | 1526 |
| 2011 | September | 1 | 509 | 1502 |
| 2011 | August | 1 | 509 | 1512 |
| 2011 | July | 1 | 515 | 1578 |
| 2011 | June | 1 | 515 | 1650 |
| 2011 | May | 1 | 515 | 1635 |
| 2011 | April | 1 | 515 | 1663 |
| 2011 | March | 1 | 515 | 1669 |
| 2011 | February | 1 | 515 | 1666 |