| Value | Category | Cases | |
|---|---|---|---|
| 2011 | 275 |
41.5%
|
|
| 2012 | 163 |
24.6%
|
|
| 2013 | 1 |
0.2%
|
|
| 2015 | 1 |
0.2%
|
|
| 2018 | 1 |
0.2%
|
|
| 2019 | 1 |
0.2%
|
|
| Missing value | 220 |
33.2%
|