| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 159 |
13.2%
|
|
| 2012 | 125 |
10.4%
|
|
| 2013 | 346 |
28.7%
|
|
| 2014 | 449 |
37.3%
|
|
| 2015 | 94 |
7.8%
|
|
| 2017 | 32 |
2.7%
|
|
| Sysmiss | 993 |