Great Shefford 2009 | Monthly Breakdown
| Month | Editorial | Discovery | Orbit Update | DOU | List Update | Retraction | Other | Follow-Up | First Follow-Up |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 2 | 12 | 0 | 0 | 0 | 17 | 7 |
| Feb | 0 | 0 | 2 | 6 | 0 | 0 | 0 | 11 | 5 |
| Mar | 0 | 0 | 4 | 21 | 0 | 0 | 0 | 29 | 15 |
| Apr | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 13 | 2 |
| May | 0 | 0 | 3 | 12 | 0 | 0 | 0 | 7 | 3 |
| Jun | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 7 | 3 |
| Jul | 0 | 0 | 3 | 11 | 0 | 0 | 0 | 6 | 4 |
| Aug | 0 | 0 | 1 | 14 | 0 | 0 | 0 | 24 | 9 |
| Sep | 0 | 0 | 2 | 16 | 0 | 0 | 0 | 30 | 14 |
| Oct | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 24 | 9 |
| Nov | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 18 | 7 |
| Dec | 0 | 0 | 2 | 13 | 0 | 0 | 0 | 8 | 4 |