| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 7 |
3.6%
|
|
| 2011 | 12 |
6.2%
|
|
| 2012 | 41 |
21.1%
|
|
| 2013 | 62 |
32%
|
|
| 2014 | 72 |
37.1%
|
|
| Sysmiss | 2370 |