
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 2002 | 6 | 6 | 8 | 5 | 3 | 4 | 6 | 6 | 6 | |||
| 2003 | 5 | 5 | 5 | 4 | 6 | 7 | 4 | 5 | 5 | 5 | 5 | 5 |
| 2004 | 4 | 4 | 5 | 5 | 5 | 4 | 4 | 5 | 4 | 4 | 8 | 5 |
| 2005 | 4 | 4 | 2 | 5 | 5 | 8 | 3 | 5 | 3 | 6 | 6 | 5 |
| 2006 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 3 | 5 | 4 | 7 | 6 |
| 2007 | 4 | 4 | 7 | 5 | 3 | 4 | 4 | 6 | 4 | 5 | 4 | 6 |
| 2008 | 4 | 4 | 5 | 3 | 4 | 5 | 4 | 5 | 5 | 4 | 4 | 2 |
| 2009 | 3 | 2 | 3 | 3 | 3 | 2 | 2 | 1 | 3 | 3 |