| Year | Month | Day | Rating | Rank |
|---|---|---|---|---|
| 2014 | March | 1 | 1979 | 184 |
| 2014 | February | 1 | 1979 | 201 |
| 2014 | January | 1 | 1979 | 197 |
| 2013 | December | 1 | 1979 | 195 |
| 2013 | November | 1 | 1991 | 186 |
| 2013 | October | 1 | 1991 | 191 |
| 2013 | September | 1 | 1991 | 186 |
| 2013 | August | 1 | 1991 | 187 |
| 2013 | July | 1 | 1974 | 186 |
| 2013 | June | 1 | 1882 | 238 |
| 2013 | May | 1 | 1883 | 229 |
| 2013 | April | 1 | 1883 | 225 |
| 2013 | March | 1 | 1883 | 223 |
| 2013 | February | 1 | 1882 | 220 |
| 2013 | January | 1 | 1882 | 214 |
| 2012 | December | 1 | 1882 | 209 |