| Value | Category | Cases | |
|---|---|---|---|
| 2011 | 1614 |
9.1%
|
|
| 2012 | 1206 |
6.8%
|
|
| 2013 | 1483 |
8.3%
|
|
| 2014 | 4424 |
24.8%
|
|
| 2015 | 7979 |
44.8%
|
|
| 2016 | 1114 |
6.3%
|
|
| Sysmiss | 65887 |