| Value | Category | Cases | |
|---|---|---|---|
| 2011 | 373 |
44.8%
|
|
| 2012 | 356 |
42.8%
|
|
| 2013 | 28 |
3.4%
|
|
| 2014 | 2 |
0.2%
|
|
| 2015 | 10 |
1.2%
|
|
| 2016 | 1 |
0.1%
|
|
| 2018 | 3 |
0.4%
|
|
| 2020 | 1 |
0.1%
|
|
| 2021 | 1 |
0.1%
|
|
| Missing value | 57 |
6.9%
|