| Value | Category | Cases | |
|---|---|---|---|
| 2010 | 1 |
2%
|
|
| 2011 | 1 |
2%
|
|
| 2013 | 7 |
13.7%
|
|
| 2014 | 36 |
70.6%
|
|
| 2015 | 6 |
11.8%
|
|
| Sysmiss | 1449 |