| Value | Category | Cases | |
|---|---|---|---|
| 2013 | 6 |
0.8%
|
|
| 2014 | 185 |
23.7%
|
|
| 2015 | 54 |
6.9%
|
|
| 2016 | 11 |
1.4%
|
|
| 2017 | 4 |
0.5%
|
|
| 2018 | 11 |
1.4%
|
|
| 2019 | 1 |
0.1%
|
|
| Missing value | 508 |
65.1%
|