| YEAR | MEAN SCORE |
| 2011 | 337.78 |
| 2012 | 321.44 |
| 2013 | 326.76 |
| 2014 | 333.21 |
| 2015 | 352.36 |
| 2016 | 317.44 |
| 2017 | 342.07 |
| 2018 | 354.40 |
| 2019 | 351.83 |
We Lead Others Follow
| YEAR | MEAN SCORE |
| 2011 | 337.78 |
| 2012 | 321.44 |
| 2013 | 326.76 |
| 2014 | 333.21 |
| 2015 | 352.36 |
| 2016 | 317.44 |
| 2017 | 342.07 |
| 2018 | 354.40 |
| 2019 | 351.83 |