| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 6 | 11 | 10 | 14 | 38 | 25 | 25 | 14 | 23 | 13 | 17 | 8 |
| 2017 | 6 | 7 | 7 | 12 | 13 | 6 | 11 | 5 | 5 | 18 | 10 | 11 |
| 2016 | 9 | 5 | 12 | 17 | 8 | 6 | 12 | 7 | 8 | 7 | 15 | 5 |
| 2015 | 10 | 12 | 10 | 6 | 2 | 5 | 6 | 9 | 2 | 3 | ||
| 2014 | 11 | 16 | 9 | 2 | 19 | 11 | 3 | 3 | 8 | 4 | 5 | 4 |
| 2013 | 20 | 5 | 65 | 20 | 12 | 15 | 27 | 15 | 16 | 14 | 10 | 18 |
| 2012 | 7 | 29 | 24 | 16 | 17 | 10 | 19 | 18 | 13 | 39 | 14 | 23 |
| 2011 | 20 | 18 | 15 | 20 | 7 | 18 | 11 | 8 | 22 | 14 | 28 | 13 |
| 2010 | 31 | 45 | 33 | 23 | 12 | 16 | 22 | 17 | 16 | 20 | 11 | 20 |
| 2009 | 4 | 11 | 8 | 6 | 10 | 6 | 7 | 11 | 22 | 36 | 19 | 38 |
| 2008 | 7 | 6 | 11 | 13 | 10 | 4 | 5 | 3 | 4 | 8 | 5 | 7 |
| 2007 | 11 | 8 | 17 | 10 | 7 | 10 | 13 | 2 | 27 | 25 | 21 | 22 |
| 2006 | 7 | 18 | 13 | 30 | 16 | 7 | 17 | 23 | 11 | 13 | 8 | 6 |
| 2005 | 22 | 16 | 15 | 11 | 12 | 4 | 8 | 3 | 9 | 16 | 17 | 12 |
| 2004 | 17 | 15 | 10 | 26 | 20 | 16 | 16 | 13 | 11 | 23 | 48 | 11 |
| 2003 | 12 | 22 | 10 |