| 2009 | 10.69 | 7.71 | 12.47 |
| 2010 | 10.29 | 7.18 | 11.93 |
| 2011 | 9.43 | 9.95 | 9.18 |
| 2012 | 9.66 | 7.58 | 10.67 |
| 2013 | 10.89 | 9.19 | 11.75 |
| 2014 | 12.11 | 11.18 | 12.57 |
| 2015 | 16.81 | 15.00 | 17.68 |