| Year |
WEC Cases |
WEC Rate | ON Cases | ON Rate |
| 2011 | 6 | 1.5 | 81 | 0.6 |
| 2012 | 22 | 5.5 | 271 | 2.0 |
| 2013 | 5 | 1.2 | 57 | 0.4 |
| 2014 | 1 | 0.2 | 13 | 0.1 |
| 2015 | 4 | 1.0 | 34 | 0.2 |
| 2016 | 4 | 1.0 | 55 | 0.4 |
| 2017 | 20 | 4.8 | 159 | 1.1 |
| 2018 | 13 | 3.1 | 141 | 1.0 |
| 2019 | 1 | 0.2 | 25 | 0.1 |
| 2020 | 3 | 0.7 | 84 | 0.5 |
| Year |
WEC Cases |
WEC Rate | ON Cases | ON Rate |
| 2011 | 6 | 1.5 | 81 | 0.6 |
| 2012 | 22 | 5.5 | 271 | 2.0 |
| 2013 | 5 | 1.2 | 57 | 0.4 |
| 2014 | 1 | 0.2 | 13 | 0.1 |
| 2015 | 4 | 1.0 | 34 | 0.2 |
| 2016 | 4 | 1.0 | 55 | 0.4 |
| 2017 | 20 | 4.8 | 159 | 1.1 |
| 2018 | 13 | 3.1 | 141 | 1.0 |
| 2019 | 1 | 0.2 | 25 | 0.1 |
| 2020 | 3 | 0.7 | 84 | 0.5 |