| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 17 | 5 | 12 | 1 |
| 2008 | 0 | 4 | 19 | 40 | 15 | 7 | 30 | 26 | 12 | 7 | 20 | 36 |
| 2009 | 14 | 36 | 3 | 1 | 31 | 9 | 5 | 7 | 3 | 2 | 3 | 6 |
| 2010 | 3 | 2 | 3 | 15 | 8 | 22 | 14 | 13 | 8 | 15 | 9 | 7 |
| 2011 | 15 | 11 | 9 | 15 | 18 | 51 | 40 | 50 | 43 | 50 | 11 | 32 |
| 2012 | 25 | 35 | 53 | 51 | 37 | 48 | 32 | 8 | 14 | 18 | 25 | 13 |
| 2013 | 21 | 12 | 31 | 4 | 13 | 9 | 24 | 0 | 0 | 0 | 0 | 0 |